Question # 1

A spring of spring constant 10 N/m after loading that amplitude is 2m. Then the maximum P.E. is

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10 J

20 J

30 J

40 J

Value of triple point of water is given as.

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Zero K

100 K

273.16 K

373.16 K

According to Newton, sound travels in air under conditions of.

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Adiabatic

Isothermal

Isobaric

Isochoric

The temperature scale which is independent of nature of substance is.

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Thermodynamic scale

Centigrade scale

Fahrenheit scale

Regnault scale

The basics quantity among the following is

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Mass

Torque

Force

Velocity

the change in internal energy is defined as

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Q - W

Q-T

Q + P

Q - P

The relation between linear and angular velocity is

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Damping is the process in which energy

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Increases

Remains constant

Dissipates

None of these

The weight of the body at the centre of earth is

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Maximum

Minimum

Zero

Infinite

The direction of angular velocity is determined.

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Left hands rule

Head to tail rule

Right hand rule

General rule

Which one is a conservative force

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Elastic spring force

Air resistance

Frictional force

Tension in the spring

The unit of solar light inversely is

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Watt

kW m-2

Watt m-2

1 m2

Standard metal according to Michelson's interferometer is equivalent to

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1553163.5 wave meter

3 x 108meter

15503000 meter

None of these

The actual efficiency of property turned petrol engine is.

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20% to 30%

30% to 35%

40% to 45%

25% to 30%

In Michelson's experiment the relation used to find the speed of light is

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16 fc

1/16 fd

16 fd

16/fd

When two identical travelling waves are superimposed, velocity of resultant wave.

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Decreases

Increases

Remain same

Becomes zero

No body begins to move or comes to rest of itself was given by

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Newton

Pascal

Bernoulli

Bu Ali Sina

Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will

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Decrease

Unchanged

Half

Increases

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1st Year Fsc Physics Online Test MCQs With Answers

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