Question # 1

If the slope of a velocity time graph gradually decreases than body is said to be moving with

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Positive acceleration

Negative acceleration

Uniform velocity

None

Which one is renewable source of energy.

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Coal

Uranium

Biomass

Natural gas

A convex lens acts as diverging lens if the object is placed at

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F

2F

Between F and 2 F

Within the F

One foot is equal to

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31.90 cm

30.48 cm

30.84 cm

84.30 cm

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

If focal length of objective and eye piece is 0.5 m and 10 cm respectively then magnifying power of telescope will be.

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0.5

5

10

20

The velocity of a projectile is maximum

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At the highest point

At point of launching and just before striking the ground

At half of the height

After striking the ground

Multimode step index fiber is useful for.

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Long distance

Sort distance

Very long distance

Infinite distance

The law of conservation of mass gives.

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Beronoulli's

Venturi relation

Torricelli's theorem

Equation of continuity

The speed of stars and galaxies can be calculated by

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Compton effect

Stefan's law

Doppler's effect

Pascal's law

The least distance of distinct vision for the normal eye is.

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15 cm

25 cm

125 cm

25 m

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

Parallel vectors of same magnitude will be

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Equal

Opposite

Both a and b

None of these

The speed \velocity of sound is greatest in.

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Air

Steel

Ammonia

Water

__ will travel faster than other through an optical fibre.

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Ultraviolet light

Visible light

Infrared light

White light

The regular or steady flow of fluid is called

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Stream line

Turbulent flow

Average flow

None of these

For an ideal gas, the internal energy is directly proportional to.

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Pressure

volume

Mass

Temperature

The mean kinetic energy of gas is at.

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0 ^oC

-273 ^oC

100 K

100 ^oC

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