Question # 1

In a simple harmonic motion (SHM), which of the following does not hold?

Choose an answer

To force on the particle is maximum at the ends

The acceleration in minimum at the mean position

The potential energy is maximum at the mean position

The kinetic energy is maximum at the mean position

The percentage errors in the measurements of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimate of the kinetic energy obtained by measuring mass and speed

Choose an answer

11%

8%

5%

1%

In case of p-n junction diode, at high value of reverse bias, the current rises sharply. The value of reverse bias is known as:

Choose an answer

Cut off voltage

Zener voltage

Inverse voltage

Critical voltage

A 220 V, 50 Hz. A.C. 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

Angular momentum is

Choose an answer

Vector (axial)

Vector (polar)

Scalar

None of these

When we apply reverse bias to a junction diode, it

Choose an answer

Lowers the potential barrier

Raise the potential barrier

Increase the majority carrier current

Increase the minority carrier current

Which of the following particles would experience the largest magnetic force when projected with the same velocity perpendicular to a magnetic field?

Choose an answer

Proton

Electron

He⁺

Li⁺

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

The product of the pressure and volume of an ideal gas is

Choose an answer

A constant

Approximately equal to the universal gas constant

Directly proportional to its temperature

Inversely proportional to its temperature

The frequency of the incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is

Choose an answer

Double the earlier value

Unchanged

More than doubled

Less than doubled

Band spectrum is produced by

Choose an answer

H

He

H₂

Na

A force of 10N is acting along y-axis. Its component along x-axis is

Choose an answer

10N

20N

100N

Zero N

What is the average energy of N molecules of monoatomic gas?

Choose an answer

1/2 NKT

NKT

3/2 NKT

5/2 NKT

A charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when:

Choose an answer

q = Q/4

q = Q/2

q = Q

None of these

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

The angle between rectangular components of a vector is

Choose an answer

0°

60°

90°

120°

More Classes

Other Links

NAT II Physical Science Physics 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