PHYSICS QUIZ

Which of the following pair is Incorrect?I. Parsec - DistanceII. Barrel - LiquidIII. Light year - Time

Only I and III

All are correct

Only II

Only III

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The energy that generates wind comes from what source?

Anemometers

Solar radiation

Ocean currents

None of these

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A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to

Change in momentum

Change in acceleration

Inertia of motion

Outward pull on him

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Quality of transmission depends upon

Neither A nor B

Nature of medium only

Nature of signal only

Both (A) and (B)

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The speed of sound in air depends on

None of these

Wavelength

Frequency

Temperature

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Angle of friction and angle of repose are

Proportional to each other

Equal to each other

None of these

Not equal to each other

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Intensity of sound at a point is ____ its distance from the source.

directly proportional to

directly proportional to square of

inversely proportional to

inversely proportional to square of

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A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank?

The surface of the liquid remains horizontal

The liquid surface falls down on the direction of motion and rises up on the back side of the tank

None

The liquid surface falls down only at the center of the tank

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Wollen clothes keep the body warm because

Wool increases the temperature of the body

Wool absorbs radiant heat from outer objects

Wool rejects heat from the outer objects

Wool is a bad conductor

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Which resource is both renewable and inexpensive?

Minerals

Coal

Sunlight

Gold

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