Question # 1

A quantity which indicates the state and direction of a vibrating body is known as

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Time period

Amplitude

Phase

Frequency

Direction of angular acceleration is always along

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x-axis

y -axis

z-axis

The axis of rotation

the height of the geostationary satellite above the equator is.

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35000 km

36000 km

34000 km

33000 km

A man of mass 5 kg is falling freely, the fore acting on it will be

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5 N

9.8 N

19.6 N

49 N

If the stream lines of fluid are forced closer together then.

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Speed of the fluid increases

Speed of the fluid decreases

Pressure of the fluid increases

Speed of the fluid remain same

Example of thin film is.

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Soap burble

convex lens

Concave lens

Glass plate

The resultant of two forces 3N and 4 N acting at right angle to each other is.

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5 N

6 N

1 N

7 N

Blood has density equal to that of

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Mercury

Sodium

Honey

Water

Minimum number of unequal forces whose vector sum can be zero are.

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5

4

3

2

Boltzman constant 'k' has same unit as.

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Temperature

Energy

Entropy

Pressure

Watt -m2 is the unit of

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Energy

Intensity

Power

Work

The founder of mathematical physics is

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EuclidArchimedes

Plato

Aristotle

The SI unit of flow rate are

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m-sec^-2

m³-sec^-1

m³-sec^-2

m-sec^-3

The experimental value for the velocity of sound in air is

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233 m-sec^-1

333 m-sec^-1

433 m-sec^-1

533 m-sec^-1

In rotational motion the torque is equal to rate of change of

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Angular velocity

Linear momentum

Angular momentum

Angular acceleration

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

The artificial satellites are held in orbits by

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Gravitational force

Electric force

Magnetic force

All of these

A stretched string 2 m long and it has 2 hopes of stationary waves hen the wavelength is

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4 m

2 m

3 m

1 m

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