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Objective Questions

Latest NMMS Class 8 Exam Question (Objective Questions), MCQ in English

Subjects : Mathematics, Science

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Mathematics

Question 1Single Answer

The elements of the set {x : x is an integer, x² : 4} can be represent as .....Z..... . Here, Z refers to

A
{–2, 2}
B
{–1, 0, 1}
C
{–2, –1, 0, 1, 2}
D
{0, 1, 2}

Question 2Single Answer

A
B
C
D
None of these

Question 3Single Answer

If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as

A
{2}
B
{1, 2}
C
{1, 2, 22, ....., 2p – 1}
D
{1, 2, 22, 23,.... 2p – 1, (2p – 1)}

Question 4Single Answer

The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is

A
{1, 2, 3, 4, 5}
B
{1, 2, 3, 4, 5, 6}
C
{2, 4, 6}
D
{1, 3, 5}

Question 5Single Answer

If A

B and A

B, then

A
A is called a proper subset of B
B
A is called a super set of B
C
A is not a subset of B
D
B is a subset of A

Question 6Single Answer

The number of non-empty subsets of the set{1, 2, 3, 4} is

A
15
B
14
C
16
D
17

Question 7Single Answer

The number of elements of the power set of a set containing m elements is

A
2^m – 1
B
m
C
m²
D
2^m

Question 8Single Answer

If A = {x : x = n², n = 1, 2, 3}, then number of proper subsets is

A
3
B
8
C
7
D
None of these

Question 9Single Answer

If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is

A
16
B
15
C
4
D
None of these

Question 10Single Answer

Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then

A
A is always a subset of the complement of B
B
B is always a subset of A
C
A and B are always disjoint
D
A and the complement of B are always non-disjoint

Question 11Single Answer

Which of the following is/are empty set?
A = {x : x2 + x + 1 = 0 and x Î Z} B = {x : x is a prime number and 19 < x < 23}

A
A
B
B
C
Both A and B
D
None of the above

Question 12Single Answer

The set {x : x⁴ = 1 and x

R} is .....X.... set. Here, X refers to

A
empty
B
finite
C
infinite
D
singleton

Question 13Single Answer

The universal set for the sets
A = {x : x² – 5x + 6 = 0} and
B = {x : x² – 3x + 2 = 0} having least number of elements is

A
{1, 2}
B
{1, 3}
C
{1, 2, 3}
D
{0, 1, 2, 3}

Question 14Single Answer

If A = {1, 2, 3}, B = {x € R : x2 – 2x + 1 = 0},

C = {1, 2, 2, 3} and

D = {x € R : x3 – 6x2 + 11x – 6 = 0}, then the equal sets are

A
A and B
B
A and C
C
A, B and C
D
A, C and D

Question 15Single Answer

If A = (–3, 5) and B = [–7, 9], then

A
A = B
B
A B
C
B A
D
None of these

Question 16Single Answer

Two finite sets have m and n elements, respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The value of m and n respectively are

A
7, 6
B
5, 1
C
6, 3
D
8, 7

Question 17Single Answer

Combine terms: 12a + 26b - 4b – 16a .

A
4a + 22b
B
-28a + 30b
C
-4a + 22b
D
28a + 30b

Question 18Single Answer

The average of first 50 natural numbers is ………… .

A
25.30
B
25.5
C
25.00
D
12.25

Question 19Single Answer

60 Times of 8 Equals to

A
480
B
300
C
250
D
400

Question 20Single Answer

Consider the sets

A = {x : x is a real number and x² + 1 = 0}

B = {x : x is a real number and x² – 16 = 0}

C = {x : x is a real number and x² = x + 2}

Which of the following is are null set ?

A
A
B
A and B
C
A and C
D
A, B and C

Science

Question 21Single Answer

In ruby laser, the stimulated emission is due to transition from

A
metastable state to any lower state
B
any higher state of lower state
C
metastable state to ground state
D
any higher state to ground state

Question 22Single Answer

A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is

A
uniform throughout the pipe not zero
B
zero only along the axis of the pipe
C
zero at any point inside the pipe
D
maximum at the centre and minimum at the edge

Question 23Single Answer

convex lens made of glass has focal length 0.15m in air. If the refractive index of glass is 3/2, and that of water is 4/3 the focal length of lens when immersed in water is

A
0.45 m
B
0.15 m
C
0.30 m
D
0.6 m

Question 24Single Answer

Two sources are said to be coherent if they produce waves

A
having a constant phase difference
B
of equal wavelength
C
of equal speed
D
having same shape of wavefront

Question 25Single Answer

Three resistors 1 Ω, 2 Ω, 3Ω resistor a 3 V battery is connected. The current through 3 Ω resistor is -

A
0.75 A
B
1 A
C
2 A
D
1.5 A

Question 26Single Answer

In a common emitter amplifier the input signal is applied across

A
anywhere
B
emitter-collector
C
collector-base
D
base-emitter

Question 27Single Answer

Adding detergents to water helps in removing dirty greasy stains. This is because
1. It increases greasy stains. This is because
2. It decreases the oil-water surface tension
3. It increases the viscosity of the solution
4. Dirt is held suspended surrounded by detergent molecules

A
2 and 4
B
1 only
C
3 and 4
D
4 only

Question 28Single Answer

Choose the correct statement (a) for a cricket ball that is spinning clockwise through air
S1 : Statemlines of air are symmetric around the ball.
S2 : The velocity of air above the ball relative to it is larger than that below the ball.
S3 : The velocity of air above the ball relative to it is smaller than that below the ball.
S4 : There is a net upward force on the ball.

A
S1,S2 and S4
B
S2 and S4
C
S4 only
D
S3 only

Question 29Single Answer

Ferromagnetic materials used in a transformer must have

A
low permeability and high hysterisis loss
B
high permeability and low hysterisis loss
C
high permeability and high hysterisis loss
D
low permeability and low hysterisis loss

Question 30Single Answer

According to Newton’s corpuscular theory, the speed of light is

A
same in all the medium
B
lesser in rarer medium
C
lesser in denser medium
D
independent of the medium

Question 31Single Answer

For the constructive interference the path difference between the two interfering waves must be equal to

A
(2𝜋 + 1)λ
B
2n𝜋
C
nλ
D
n

Question 32Single Answer

The accurate measurement of emf can be obtained using

A
multimeter
B
voltmeter
C
voltameter
D
potentiometer

Question 33Single Answer

A person, with outstretched arms, is spinning on a rotating stool. He suddenly brings his arms down to his sides. Which the following is true about his kinetic energy K and angular momentum L?

A
Both K and L increase
B
Both K and L remain unchanged
C
K remains constant, L increases
D
K increases but L remains constant

Question 34Single Answer

Which of the following is not a thermodynamic coordinate?

A
Gas constant (R)
B
Pressure (p)
C
Volume (V)
D
Temperature (T)

Question 35Single Answer

An antenna uses electromagnetic waves of frequency 5 MHz . For proper working, the size of the antenna should be

A
300 m
B
3 km
C
15 m
D
15 km

Question 36Single Answer

10^-6 M NaOH is diluted 100 times. The pH of the diluted base is

A
between 7 and 8
B
between 5 and 6
C
between 6 and 7
D
between 10 and 11

Question 37Single Answer

In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is

A
1.93 A
B
9.65 A
C
19.3 A
D
0.965 A

Question 38Single Answer

The one which decreases with dilution is

A
molar conductance
B
conductance
C
specific conductance
D
equivalent conductance

Question 39Single Answer

Vapour pressure of pure ‘A’ is 70 mm of Hg at 25^oC. It forms an ideal solution with ‘B’ in which mole fraction of A is 0.8. if the vapour pressure of the solution is 84 mm of Hg at 25^oC, the vapour pressure of pure ‘B’ at 25^oC is

A
28 mm
B
56 mm
C
70 mm
D
140 mm

Question 40Single Answer

A 6% solution of urea is isotonic with

A
1 M solution of glucose
B
0.05 M solution of glucose
C
6% solution of glucose
D
25% solution of glucose

Question 41Single Answer

In countries nearer to polar region, the roads are sprinkled with CaCl₂. This is

A
to minimise the wear and tear of the roads
B
to minimise the snow fall
C
to minimise pollution
D
to minimise the accumulation of dust on the road

Question 42Single Answer

A compound of ‘A’ and ‘B’ crystallises in a cubic lattice in which ‘A’ atoms occupy the lattice points at the corners of the cube. The ‘B’ atoms occupy the centre of each face of the cube. The probable empirical formula of the compound is

A
AB₂
B
A₂B
C
AB
D
AB₃

Question 43Single Answer

In electrophilic aromatic substitution reaction, the nitro group is meta directing because it

A
decreases electron density at ortho and para positions
B
decreases electron density at meta position
C
increases electron density at meta position
D
increases electron density at ortho and para position

Question 44Single Answer

The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with

A
PCI₅
B
PCI₃
C
SOCl₂ in presence of pyridine
D
dry HCl in the presence of anhydrous ZnCl₂

Question 45Single Answer

The carbon bond length in benzene is

A
in between C₂H₆ and C₂H₄
B
same as in C₂H₄
C
in between C₂H₆ and C₂H₂
D
in between C₂H₄ and C₂H₂

Question 46Single Answer

The respiratory quotient during cellular respiration would depend on

A
the nature of enzymes involved
B
the nature of the substrate
C
the amount of carbon dioxide released
D
the amount of oxygen utilised

Question 47Single Answer

Which of the following is not a green - house gas ?

A
Water vapour
B
Carbon monoxide
C
Methane
D
Oxygen

Question 48Single Answer

Both husband and wife have normal vision though their fathers were colorblind and mothers did not have any gene for colorblindness. The probability of their daughters becoming colorblind is

A
50%
B
75%
C
0%
D
25%

Question 49Single Answer

An animal, which has both exoskeleton and endoskeleton structures is a

A
fresh-water mussel
B
tortoise
C
frog
D
jelly fish

Question 50Single Answer

Identify the group, which includes animals all of which give birth to young ones directly?

A
Dolphin, kangaroo, bat, cat
B
Platypus, penguin, bat, hippopotamus
C
shrew, bat, kiwi, car
D
Lion, whale, ostrich, bat

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Science

Question 51Single Answer

Compare the statement A and B.
Statement A Blood sugar level falls rapidly after hepatectomy.
Statement B The glycogen of the liver is the principal source of blood sugar.
Select the correct description.

A
Both the statements A and B are correct and B is the reason for A
B
Statement A is correct and B is wrong
C
Statement A is wrong and B is correct
D
Both the statements A and B are correct and B is not the reason for A

Question 52Single Answer

What is/are true about heart wood?
(A) It does not help in water conduction.
(B) It is also called laburnum.
(C) It is dark in colour but very soft.
(D) It has tracheary elements which are filled with tannin, resin, etc.

A
B,C and D
B
A and D
C
B and D
D
A, B and C

Question 53Single Answer

Compare the statements A and B.
Statement A Auxins promote apical dominance by suppressing the activity of lateral buds.
Statement B In moriculature, periodic pruning of shoot tips is done to make mulberry plants bushy.
Select the correct description.

A
Both the statements A and B are correct and A is the reason for B
B
Statement A is correct and B is wrong
C
Statement A is wrong and B is correct
D
Both the statements A and B are correct and A is not the reason for B

Question 54Single Answer

Bryophytes resemble algae is the following aspects

A
Filamentous body, presence of vascular tissues and autotrophic nutrition
B
Differentiation of plant body into root, stem and leaves and autotrophic nutrition
C
Thallus like plant body, presence of roots and autotrophic nutrition
D
Thallus like plant body, lack of vascular tissues and autotrophic nutrition

Question 55Single Answer

Stoma opens, when

A
guard cells swell due to an increase in their water potential
B
guard cells swell by endosmosis duie to influx of hydrogen ions (protons)
C
guard cells swell by endosmosis due to efflux of potassium ions
D
guard cell swell due to a decrease in their water potential

Question 56Single Answer

Choose the industrial cities that grew rapidly in Britain in the nineteenth and twentieth centuries:

A
Leeds and Manchester
B
Bristol and Manchester
C
Carlisle and Leeds
D
Chester and Leeds

Question 57Single Answer

Which were the three Presidency cities of Colonial India in late eighteenth century?

A
Calcutta, Bombay and Madras
B
Calcutta, Bombay and Surat
C
Bombay, Madras and Delhi
D
None of these

Question 58Single Answer

What is Urbanization?

A
Migration of population from rural to urban area
B
Migration of people from urban to rural
C
Migration of people from one country to another
D
Migration of population from one state to another one

Question 59Single Answer

What is de urbanization in the colonial context?

A
The process by which many old towns, trading centers and ports emerged due to emergence of new cities.
B
The process by which many old towns, trading centers and ports declined due to emergence of new cities.
C
a and b both
D
None of these

Question 60Single Answer

Which of the following Indian cities which were de-urbanized during the nineteenth century?
i. Machlipatnam
ii. Surat
iii. Seringapatam
iv. Bombay

A
i and ii
B
i, iv and ii
C
i, ii and iii
D
i, ii, iii and iv

Question 61Single Answer

In which year Delhi became the capital of British India?

A
1916
B
1913
C
1915
D
1911

Question 62Single Answer

When was Shahjahanabad built?

A
by ShahJahan in 1640
B
by ShahJahan in 1638
C
by ShahJahan in 1639
D
None of these

Question 63Single Answer

Before Delhi, which city was the capital of British India?

A
Calcutta
B
Madras
C
Bombay
D
Agra

Question 64Single Answer

What is Gulfaroshan?

A
It was a festival of flowers celebrated annually in Patna during 16^th century
B
It was a festival of flowers celebrated annually in Delhi during 18^thcentury
C
It was a festival of flowers celebrated annually in Delhi during 11^th century
D
All of these

Question 65Single Answer

Which period was referred as Delhi renaissance?

A
1857-1860
B
1860-1863
C
1865-1870
D
1830-1857

Question 66Single Answer

In the 1870s, for what reasons the western walls of Shahjahanabad were broken?

A
The walls were broken to establish the railway and to allow the city to expand beyond the walls.
B
The walls were broken to establish textile and iron industries
C
Both a and b
D
None of these

Question 67Single Answer

On which hills was the city of New Delhi built on ?

A
Almoda hills
B
Vindhva hills
C
Raisina Hill
D
None of these

Question 68Single Answer

Name the architects who designed New Delhi and its buildings.

A
Edward Lutyens and Herbert Baker
B
Herbert Baker and Harbar Lutyens
C
Edward Lutyens and Harbar Lutyens
D
None of these

Question 69Single Answer

How many years did it take to build the city of New Delhi?

A
15 years
B
35 years
C
20 years
D
25 years

Question 70Single Answer

Where was Bahadur Shah Zafar exiled to after 1857 revolt?

A
Kashmir
B
south region
C
Afghanistan
D
Burma

Question 71Single Answer

The earlist manuscripts were written on

A
palm leaves
B
paper
C
wood
D
stones

Question 72Single Answer

What does BC and AD stands for?

A
Anno Domini and Before Common
B
Before Christ and Anno Domini
C
Anno Domini and Before Christ
D
None of the above

Question 73Single Answer

Which of the following is/are characteristic(s) of a manuscript?
(A) It is written on a hard surface such as a stone or a metal.
(B) It is an old book written by hand.
(C) It is written on palm leaf or on specially prepared bark of the birch tree.

A
Only A
B
B and C
C
Only B
D
All of these

Question 74Single Answer

Which one of the following statements is false?

A
History is about changes that over time, about finding out how things were in the past and how things have changed
B
In the histories narrated by British historians about India, the rule of each Governor-General was important
C
James Mill divided Indian History into three periods Hindu, Muslim and Christian
D
The British in India believed that surveys were important for effective administration

Question 75Single Answer

Which is the criteria to decide that a particular date is important in history?

A
They are the date of birth of a king or emperor
B
A particular event or set of events has occurred on or around that date
C
It is the date of coronation of a king
D
All of the above

Question 76Single Answer

Which of the following are incorrect statements?
(A) The archaeological evidence is obtained by the systematic examination of building monumentas and work of art.
(B) The credit for excavating the Pre-Aryan past goes to Sir William Jones.
(C) The Asiatic Society of Bengal established on 1786.
(D) James Mill is known as the 'Father of Indian Archaeology'.

A
A and B
B
C and D
C
B and D
D
B, C and D

Question 77Single Answer

Consider the following statements A and B and choose the correct option
(A) Inscriptions are the most reliable evidence and their study is called epigraphy.
(B) James Princep, the secretary of the Asiatic Society of Bengal succeeded for the first time in deciphering the Brahmi script.

A
Both A and B are true
B
A is false and B is true
C
A and B are false
D
A is true and B is false

Question 78Single Answer

Consider the following statements A and B on the study of coins and choose the correct option
(A) The study of coins is known as numismatics
(B) The coins give us an idea about the socio-political aspect of that period.

A
Both A and B are true
B
A is false and B is true
C
A and B are false
D
A is true and B is false

Question 79Single Answer

Which of the following are correct statements?
(A) Literaiy sources includes manuscripts.
(B) These writings were written by hands.
(C) It gives a reliable glimpses of culture and civilisation of the age
(D) Raj Tarangini was written by Banbhatta.

A
A, B and C
B
B,C and D
C
A, B and D
D
All of these

Question 80Single Answer

Which objects can archaeologists find which may be made of stone?

A
Remains of buildings, paintings and sculpture
B
Tools, weapons and ornaments found by excavation
C
Coins, pots and pans found beneath the surface of the Earth
D
All ot the above

Question 81Single Answer

On what subjects were books not written in ancient days?

A
Murder mysteries
B
Religious beliefs and practices
C
Lives of the kings
D
Epics, poems and plays

Question 82Single Answer

What is the meaning of ‘periodisation’ in history?

A
Deciding the period of time for which an age like neolithic or paleolithic age lasts
B
Dividing the earlier times into fixed periods of 100 years each
C
Demarcating of time into different unequal periods based on the occurrence of some significant events
D
None of the above

Question 83Single Answer

Which of the following gives the correct meaning of ‘colonisation’ in history?

A
When one country conquers another, it brings about changes in its society
B
When a country ‘colonises’ another, it imposes its religion on the colonised country completely
C
Colonisation implies intermarrying of the colonised people with the colonisers
D
All of the above

Question 84Single Answer

What can a historian not derive from surveys?

A
We can collect the right data, figures and information regarding a subject
B
We can find out past behaviour and structure of society
C
We can find out the culture, habits and means of livelihood of the people
D
All of the above

Question 85Single Answer

In the middle of the 19th century, British historians divided history of Indin into three periods-Hindu India, Muslim India and British India. What is the basis of this division?

A
It was based on the idea that religion of the rulers was an important historical change
B
History of England is also written in a similar way
C
Britishers felt they were more knowledge-able at that point of time in history and so used this division
D
It was convenient and easy to remember

Question 86Single Answer

Which of the following statement about ‘ancient manuscript’ is not correct?

A
They were usually written on Palm leaves
B
They are primary source of the period they reflected
C
They were handwritten and then printed
D
Some manuscript were engraved on stone or metal

Question 87Single Answer

What is ‘Common Era'?

A
A new era developed by amalgamation of Hindu Era and Islamic Era
B
A new era to study historical events
C
Christian Era which is now accepted in major parts of the world
D
Indian Era accepted by the government to issue notices

Question 88Single Answer

The year ‘2012 can also be written as

A
AD 2012
B
AP 2012
C
BC 2012
D
EC 2012

Question 89Single Answer

The division of the period of Indian History into ‘Ancient’, ‘Medieval’ and ‘Modern’ also has problems. Which of the following is one of the problems in it?

A
Tripartite division reflects gradual growth of the Indian state
B
Three periods are insufficient to describe Indian History
C
The concept has been borrowed from the West where modem period was associated with science, reason, democracy, liberty and equality
D
Indian history seems to have diear lines of distinction between ‘Ancient and Medieval’ and ‘Medieval and Modern’ period

Question 90Single Answer

Why would you ask question on historical imagination? Choose the most appropriate option from the following.

A
It encourages comparison of the present with the past
B
It evaluates a student’s ability to identify sources
C
It is fun-way to remember dates and events
D
It shows how historians fill gaps in history with their imagination

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