Question # 1

The diver spin faster when moment of inertia becomes.

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smaller

Greater

Constant

Equal

Value of triple point of water is given as.

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Zero K

100 K

273.16 K

373.16 K

Bunsen burner works on the principle of.

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Venturi effect

Terricilli's effect

Bernoulli's effect

None of these

Dot product of vector with itself is.

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Zero

2 A

A²

A

The efficiency of heat engine whose sink is at 17 ^oC and source at 200 ^oC is.

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38%

63%

80%

90%

73.650 rounded off upto one decimal is

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73.6

74.00

73.7

73.65

X-ray diffraction has been very useful in determining the structure of

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Hemoglobin

Stars

Galaxies

Stones

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

Sound wave can not be

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Reflected

Refracted

Diffracted

Polarized

In an object is placed in between focus point and Opticla center of a convex lens, the image formed by lens is.

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Real inverted

Virtual diminshed

Virtual inverted

Virtual erected

The fringe spacing increases if we use.

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Yellow light

Green lgiht

Blue light

Red light

When body acquires terminal velocity them its acceleration 'a' becomes.

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a = 0

a = g

a > 0

a < 0

According to first law of thermodynamics the quantity which is conserved.

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Force

Momentum

Energy

Power

The kinetic energy of molecules of an ideal gas at absolute zero is

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Very low

Very high

Zero

First increases then decreases

Time rate of change of angular displacement is called

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Linear velocity

Angular velocity

Rotational velocity

Vibrational velocity

A layer over the central core of the jacke is called.

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Jacket

Plastic

Cladding

Rubber

Errors due to incorrect design of a device are called

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Random Error

Systematic Error

Physical Error

None of these

Angular displacement is

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Scalar quantity

Vector quantity

Basic quantity

None of these

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