Question # 1

The distinguish between transverse and longitudinal wave_______ is used.

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Refraction

Interference

Diffraction

polarization

Which material has maximum viscosity

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Glycerin

Plasma

Methanol

Water

Name the quantity which is a vector.

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Speed

Force

Temperature

Density

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If r = 5 m and f = 4 N are along same direction, them torque is

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20 Nm

5 Nm

10 Nm

Zero

Increase in speed of sound for 1 ^oC rise in temperature is.

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0.61 ms-1

0.61 cms-1

61 ms-1

6.1 ms-1

A typical rocket consumes fuel about

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40000 Kgs-1

30000 Kgs-1

20000 Kg s-1

10000 Kgs-1

The terminal velocity of a droplet falling down under gravity is directly proportional to the square of

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Its density

Its radius

Its viscosity

Its elasticity

The Carnot cycle can be shown by which graph

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P - T graph

P - V Graph

V- T graph

PV -T graph

The weight of an object an elevator moving down with an acceleration of 9.8 m/s2 will becomes

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Half

Double

Unchanged

Zero

As we go from pole to equator of earth, the value of 'g'

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Increase

Decrease

Remain constant

Zero

The magnifying power is also called

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Resolving power

Angular magnification

Strength of eye

None of these

When the body moves with constant acceleration the velocity time graph is

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Parabola

Hyperbola

Straight line

Curve

The dimensions of angular velocity are

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[LT-1]

[LT-2]

[T-1]

[L-1T-1]

The tides raise in the sea roughly

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Once a day

Twice a day

Three a day

Four time a day

One radian is equal to.

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75.3^o

57.3^o

35.7^o

73.3^o

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 location of near point changes with

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Age

Size of the eye

Sharpness of the eye

None of these

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