Question # 1

The conductivity of a superconductor is

Choose an answer

Infinite

Very large

Very small

Zero

What is the ratio of r.m.s velocity for O₂ to H₂?

Choose an answer

1/4

4

√4 : 1

1 : √4

A pendulum clock set to give correct time in Karachi is taken to Quetta it would give correct time if

Choose an answer

The mass of the pendulum is increased

The mass of the pendulum is decreased

The length of the pendulum os increased

The length of the pendulum is decreased

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

The dimensional formula for the modulus of elasticity is same as that for.

Choose an answer

Stress

Strain

Velocity

Surface tension

Two point charge +3μC and +8μC repel each other with a force of 40 N. if a charge of -5μC is added to each of them then the force between will become

Choose an answer

-10N

+10N

+20N

-20N

The half life of a radio-isotope is 5 years The fraction of atoms decayed in this substance after 15 years will be

Choose an answer

1

3/4

7/8

5/8

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Choose an answer

R

R²

1/R

(1/R)²

Shunt required in an ammeter of resistance R to decrease its deflection from 30 ampere to 10 ampere is

Choose an answer

R/4

R/3

R/2

R

A 50-volt battery is connected across 10-ohm resistor.The current is 4.5 A.The internal resistance of the battery is

Choose an answer

Zero

0.5 Ω

1.1 Ω

5.0 Ω

In a voltmeter the conduction takes place due to

Choose an answer

Electrons only

Holes only

Electrons and holes

Electrons and ions

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