Question # 1

A p-n junction has a thickness of the order of

Choose an answer

1 cm

1 mm

10^-6 cm

10^-12 cm

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 motion without consideration of its cause is studied in:

Choose an answer

Kinematics

Mechanics

Statics

Modern Physics

A motorist travels A to B at a speed at 40 km/h and returns at speed of 60 km/h. His average speed will be:

Choose an answer

40 km/h

48 km/h

50 km/h

60 km/h

The number of translation degrees of freedom for a diatomic gas is

Choose an answer

2

3

5

6

In which of the following states does the incandescent substance give continuous spectrum?

Choose an answer

Vapours in atomic state

Vapours in molecular state

Solid or fluid in bulk state

Solid or fluid in plasma state

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Choose an answer

Refraction

Reflection

Diffraction

Origin of spectra

The distance between node and anti-node is

Choose an answer

λ

λ/2

λ/4

2λ

The peak voltage in a 200 volt A.C supply is nearly

Choose an answer

220

253

311

A ten-ohm electric heater operates on a 110 V line Calculate the rate at which it develops heat in watts:

Choose an answer

1310 W

670 W

810 W

1210 W

A particle is moving in a uniform magnetic field then

Choose an answer

Its momentum changes but total energy remains the same

Both momentum and total energy remains the same

Both changes

Total energy change but momentum remains

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