#### MCQS of Physics for NTS

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

R

^{2}(1/R)

^{2}R

1/R

There are discrete energy levels in atoms. It was first experimentally demonstrated by

Frank Hertz experiment

Rutherford’s experiment

Marsden’s experiment

Sommerfield experiment

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in he form of heat will be

0.1 watt

10 watt

100 watt

1 watt

The time period of a simple pendulum is 2 seconds if its length is increased by 4 times then its period becomes

8 s

12 s

16 s

4 s

If the earth were to rotate faster than its present speed the weight of an object will

Increase at the equator but remain unchanged at the poles

Decrease at the equator but remain unchanged at the poles

Remain unchanged at the equator but increase at the poles

Remain unchanged at the decrease but decrease at the poles

The magnetic moment of a circular coil carrying current is

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

Inversely proportional to the length of the wire in the coil

Directly proportional to the length of the wire in the coil

A couple produces

No motion

Purely rotational motion

Linear and rotational motion

Purely linear motion

In a Millikan’s oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19 C. The number of excess electrons on the drop is

4

6

4.2

3.9

Which of the following is not thermo dynamical function?

Internal energy

Gibb’s energy

Work done

Enthalpy

If two non-zero vector ?A? and ?B are parallel to each other, then ?A?, ?B is equal to

AB

A + B

A – B

Zero

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