Question # 1

Significant figures in 0.000546

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1

4

3

5

The circumference fo the earth was determined by

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Bohr

A Beruni

Ibn al Haithm

Chadwick

73.650 rounded off upto one decimal is

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73.6

74.00

73.7

73.65

The tides raise in the sea roughly

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Once a day

Twice a day

Three a day

Four time a day

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 phenomenon of polarization of light reveals that sun light is

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Longitudinal waves

Transverse wave

Electromagnetic waves

Monochromatic wave

The SI unit of work is

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Newton

Joule

Mol

Calorie

The difference between two molar capacities is equal to.

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Plank's constant

General gas constant

Molar gas constant

Boltzmann constant

If the temperature of a gas is constant then <1/2 mv2> of the molecules of gas will be.

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Constant

Zero

Increase

Decrease

A₁b₁= A₂b₂represents

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Stock's law

Newton's law

Equation of continuity

Brenoulli's equation

The frictional effect between the different layers of fluid is called

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Terminal velocity

Stock's law

Viscosity

Surface tension

The acceleration produced by elastic restoring force is

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Perpendicular to force

Opposite to force

In same direction as force

Zero

The dimensional unit of impulse is.

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[MLT]

[MLT-1]

[ML-1T-1]

[M-1L-1T-1]

In branch of physics which deals with the nuclear particls such as neurtons, protons adn nuclear structur is called

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Nuclear Physics

Solid state Physics

Particle Physics

Plasma physics

The study of fluid dynamics is

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Easy

Complicated

Impossible

None of these

Vectors have

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Numerical value

Directional

Both a and b

None of these

The dimensions of angular velocity are

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[LT-1]

[LT-2]

[T-1]

[L-1T-1]

Increase in the velocity of sound in air for 1 ^oC rise in temperature is.

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61 ms-1

0.61 ms-1

161 ms-1

261 ms-1

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