Question # 1

Centripetal force perform

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Maximum work

Minimum work

Negative work

No work

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

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Small

Large

Zero

None

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

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Pressure

volume

Mass

Temperature

Which is unimportant in describing the satellites orbit.

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Distance of satellite from earth's center

Gravitational constant G

Mass of satellite

Mass of earth

The first person who attempted to measure the speed of light was.

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Michelson

Hygen's

Galileo

Ability

Pressure of fluid will be low where speed of fluid is.

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Low

Zero

High

Constant

Star moving towards the earth show

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Red shift

Blue shift

Green shift

Yellow shift

Significant figures in 0.000546

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1

4

3

5

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

The unit of work in base unit is

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Kg m-1 sec-2

Kgm sec-2

Kgm2 sec-1

Kgm-1 sec-1

When one mirror of a Michelson interferometer is moved a distance of 0.5 mm, 2000 fringes and observed, The wavelength of light used is.

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5000 m

50000 A^o

500 cm

2000 A^o

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

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

Substances that don't flow easily has

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Large co-efficient of viscosity

Small co-efficient of viscosity

Medium co-efficient of viscosity

Zero-coefficient of viscosity

[LT-2] is demensional formula for

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Acceleration

Velocity

Force

Momentum

The density of blood is nearly equal to.

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Air

Milk

Honey

Water

The produce oscillation, body is pulled away from its

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Mean position

Extreme position

Both a and b

None of these

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

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45°

60°

75°

90°

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