Question # 1

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

Usually the x-axis is taken as

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Vertical axis

Horizontal axis

+ve axis

-ve axis

The relation between linear and angular velocity is

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The fringe spacing increases if we use.

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Yellow light

Green lgiht

Blue light

Red light

The ability of reveal the minor details of an object under examination is called.

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Resolving power

Magnification

Scattering

Reflection

For 2.450 no. of significant digits.

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2

1

3

4

For angular momentum of system to remain constant, external torque should be.

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Small

Large

Zero

None

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 mass of a body is quantitative measure of its

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Motion

Inertia

Weight

All of these

Which one of the followign Muslim mathmatision determined the earths circumference.

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Al Beruni

Ibn Sina

Al Khawrizmi

None of these

The maximum range of projectile is 100 km, Take 9=10 ms-2, the initial velocity of the projectile will be.

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1000 kms-1

1 kms-1

10 kms-1

100 kms-1

The work done is isochoric process is.

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Constant

Variable

Zero

Depend upon condition

The internal energy of a piece of lead when beaten by hammer will.

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Increase

Decrease

Remains constant

Increases and then decrease

The direction of null vector can be

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(+) ve

(-) ve

Arbitrary

Zero

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

Law of physics expressed in term of

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Base quantites

Derived quantities

a and b

None of these

Pi radian is equal to.

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0^o

90^o

180^o

57.3^o

The actual efficiency of property turned petrol engine is.

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20% to 30%

30% to 35%

40% to 45%

25% to 30%

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