Question # 1

A 220 V, 50 Hz, AC source is connected to an inductance of 0.2.H and a resistance of 20 ohm in series What is the current in the circuit?

Choose an answer

10 A

5 A

33.3 A

3.33 A

The nuclear model of atom was proposed by

Choose an answer

J.J Thomson

E.Rutherford

Neil Bohr

Summerfield

Quantity that remains unchanged in a transformer is

Choose an answer

Voltage

Current

Frequency

None of these

Choose the correct statement

Choose an answer

Both an ammeter and voltmeter should have small resistance

Both an ammeter and a voltmeter should have large resistance

An ammeter should have large resistance and a voltmeter should have small resistance

An ammeter should have small resistance and a voltmeter should have large resistance

Which of the following is the only vector quantity

Choose an answer

Temperature

Energy

Power

Momentum

The minimum wavelength of the X-rays produced by electrons accelerated through a potential difference of V volts is directly proportional to

Choose an answer

√V

V²

1/√V

1/V

Which of the following is not thermo dynamical function?

Choose an answer

Enthalpy

Work done

Gibb's energy

Internal energy

If a diamagnetic substance is brought near north or south pole of a bar magnet it is

Choose an answer

Attracted by the poles

Repelled by the poles

Repelled by north pole and attracted by the south pole

Attracted by the north pole and repelled by the south pole

Electrons in the atom are held in the atom due to

Choose an answer

Coulomb forces

Nuclear forces

Gravitational forces

Van der Waal's forces

A 2 kg body and a 3 kg body have equal momentum if the kinetic energy of 3 kg body is 10 j, the KE of 2 kg body will be

Choose an answer

6.66 j

15 j

22.5 j

45 j

The unit of inductance is equivalent to

Choose an answer

V x s/A

V x A/s

A x s/v

V/A x s

A bullet is shot from a rifle. As a result the rifle recoils. The kinetic energy of rifle as compared to that of bullet is

Choose an answer

Less

Greater

Equal

Cannot be concluded

Ultra-violet radiation of 6.2 eV falls on an aluminium surface. K.E. of fastest electron emitted is (Work function = 4.2 eV)

Choose an answer

3.2 x 10-21 J

3.2 x 10-19 J

7 x 10-25 J

9 x 10-32 J

Blood has a density

Choose an answer

Equal to water

Greater then water

Lesser then water

None of these

A particle moving in a magnetic field has increase in its velocity, then its radius of the circle

Choose an answer

Decreases

Increases

Remains the same

Becomes half

The dimensional formula of torque is:

Choose an answer

[ML²T^-2]

{MLT^-2]

[ML^-1T^-2]

[ML^-2T^-2]

A prism splits a beam of white light into its seven constituent colors. This is so because

Choose an answer

Phase of different colors is different

Amplitude of different colors is different

Energy of different colors is different

Velocity of different colors is different

Huygen's wave theory of light cannot explain

Choose an answer

Diffraction

Interference

Polarization

Photoelectric effect

Mechanical waves on the surfaces of a liquid are

Choose an answer

Transverse

Longitudinal

Torsional

both transverse and longitudinal

Which of the following four statement is false?

Choose an answer

A body can have zero velocity and still be accelerated

A body can have a constant velocity and still have a varying speed

A body can have a constant speed and still have a varying velocity

The direction of the velocity of a body can change when its acceleration is constant

Which of the following is not thermo dynamical function?

Choose an answer

Enthalpy

Work done

Gibb's energy

Internal energy

The unit of electric current 'ampere' is the amount of current flowing through each of two parallel wires 1 m apart and of infinite length will give rise to a force between them equal to

Choose an answer

1 N/m

2 x 10^-7N/m

1 x 10^-2N/m

4 x 10²N/m

More Classes

Other Links

Physics General Science Test Hard Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer