Temperature can be expressed as derived quantity in terms of

Electron volt is a unit of

Dimensions of impulse are

Potential is measured in

One Nanometer is equal to

Maxwell is the unit of

Which of the following is derived physical quantity ?

What are the units of magnetic permeability ?

The dimensions of pressure gradient are

The dimensions of Rydberg's constant are

Which of the following is not a synthetic fibre:

Which one of the following is not contained in Portland cement ?

What is the reson for white cement to be white ?

Which fertilizer is assimilated directly by the plant ?

Which of the following chemicals is used in foam fire extinguishers ?

What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?

Which one of the following chemicals is used in beauty parlours for hair – setting ?

Which one of the following is used as a mordant in dyeing and tanning industry ?

Which one of the following substances is used in the manufacture of safety matches ?

Which one of the following polymeric materials is used for making bullet proof jacket ?

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

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

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

If A B and A B, then

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

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

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

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

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

Which one of the following helps experimental confirmation of the Crystalline state of matter?

The electrical conductivity of pure semiconductor is:

Consider the following statements pertaining to the resistance of a conductor:
1. Resistance can be simply defined as the ratio of voltage across the conductor to the current through the conductor. This is, in fact, Georg Ohm’s law.
2. Resistance is a function of voltage and current.
3. Resistance is a function of conductor geometry and its conductivity
Which of the above statements are correct?

The ratio of ionic radii of Cations i.e.and that of Anions i.e.for stable and unstable ceramic crystal structure, is:

Which one of the following statements is correct?

In an extrinsic semiconductor the conductivity significantly depends upon:

In some substances when an electric field is applied the substance become polarized. The electrons and nucleii assume new geometrical positions and the mechanical dimensions are altered. This phenomenon is called:

In ferromagnetic materials, the net magnetic moment created due to magnetization by an applied field as:

At what temperatures domains lose their ferromagnetic properties?

Which of the following materials does not have paramagnetic properties?
1. Rare earth elements (with incomplete shell)
2. Transition elements
3. Magnesium oxide
Select the correct answer from the codes given below:

In a superconducting magnet, wires of superconducting material are embedded in the thick copper matrix, because while the material is in the superconducting state:

The crystal structure of some Ceramic materials may be thought of being composed of electrically charged Cations and Anions, instead of Atoms, and as such:

Manganin alloy used for making resistors for laboratory instruments contains:

A rolled-paper capacitor of value 0.02  is to be constructed using two strips of aluminiumof width 6 cm, and wax impregnated paper of thickness 0.06 mm whose relative permittivity is 3. The length of foil strips should be:

In a semiconductor diode, cut-in voltage is the voltage:

Which of the following regions of operation are mainly responsible for heating of the transistor under switching operation?
1. Saturation region
2. Cut-off region
3. Transition from saturation to cut-off
4. Transition from cut-off to saturation
Select the correct answer using the codes given below

In a sinusoidal oscillator, sustained oscillations will be produced only if the loop gain (at the oscillation frequency) is

The Class-B push-pull amplifier is an efficient two –transistor circuit, in which the two transistors operate in the following way:

PAC stands for______.

For normal operation of a transistor