Question # 1

To explain his theory Bohr used

Choose an answer

Conservation of linear momentum

Conservation of angular momentum

Conservation of quantum frequency

Conservation of energy

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

Choose an answer

11%

8%

5%

1%

Velocity of sound in a diatomic as is 300 m/sec what is its rms velocity

Choose an answer

400 m/sec

40 m/sec

430 m/sec

300 m/sec

Who explained the origin of the Fraunhofer lines?

Choose an answer

Fraunhoffer

Kirchhoff

Fresnel

Snell

Two bodies of masses m₁ and m₂ have equal momentum their kinetic energies E₁ and E₂ are in the ratio

Choose an answer

√m₁ : √m₂

m₁: m₂

m₂: m₁

m₁² : m₂²

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart. with force of repulsion between the spheres to be 10^-19 N is

Choose an answer

25

225

625

1250

The magnetic moment of a circular coil carrying current is

Choose an answer

Directly proportional to the length of the wire in the coil

Inversely proportional to the length of the wire in the coil

Directly proportional to the square of the length of the wire in the coil

Inversely proportional to the square of the length of the wire in the coil

The structure of solids is investigated by using

Choose an answer

Cosmic Rays

X-rays

Intra red Radiation

y-rays

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

Choose an answer

The force on the particle is maximum at the ends

The acceleration is minimum at the mean position

The potential energy is maximum at the mean position

The kinetic energy is maximum at the mean position.

Planck's constant has the dimensions of:

Choose an answer

Energy

Momentum

Frequency

Angular momentum

The henry is the unit for

Choose an answer

Resistance

Magnetic flux

Magnetic field

Inductance

More Classes

Other Links

NAT I Engineering 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