Question # 1

The wavelength of fundamental note in one end closed pipe in term of length 'l' of pipe is.

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4 l

2l

l

1/4 l

Pi radian is equal to.

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0^o

90^o

180^o

57.3^o

The fluid is said to be incompressible, if its density is.

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Zero

Very high

Constant

Very small

The wavelength of wave produced by microwave oven is.

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12 cm

12 m

18 m

18 cm

The dimension of viscosity are

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[M2L-2T2]

[M-1LT-1]

[M-1L-1T]

[ML-1T-1]

Multimode step index fibre is useful for

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Long distances

Short distances

Better quality

Low price

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

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Resolving power

Magnification

Scattering

Reflection

The angle between x-axis, y-axis and z-axis is

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45°

60°

75°

90°

Heat is form of.

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Power

Momentum

Energy

Torque

Temperature of a gas is increased from 27 oC to 127 oC. The ratio of its mean K.E. will be

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3/4

9/16

4/3

10/9

International Telecommunication satellite

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4,6,8 and 10 Hz

4,6,11 and 14 GHz

4,6,8 and 12 Hz

4,8,11 and 16 GHz

Which material has maximum viscosity

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Glycerin

Plasma

Methanol

Water

Using a graded Index fibre, the time difference is reduced to about.

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1 ns per km

33 ns per 100 km

33 ns per km

1 ns per 100 km

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

No body begins to move or comes to rest of itself was given by

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Newton

Pascal

Bernoulli

Bu Ali Sina

An immediate source of energy for our body is:

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mango

Glucose

mushroom

meat

The error in speed of sound calculated by Newton at STP is about.

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0 %

14 %

15 %

16 %

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

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Small

Large

Zero

None

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