Question # 1

The velocity of a free falling body just before Hattin the ground is 9.8 ms-1, the height through which is fall be

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98 m

19.6 m

4.9 m

9.8 m

An athlete runs with a speed of 12 ms-1. Determine the longest jump he can undertake.

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12 m

14.4 m

24 m

16.2 m

A cycle of petrol engine undergoes

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Two process

Three process

Four process

single process

The study of Physics deals with

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Laws of motion

The structure of space and time

Force present in the nature

All of the above

The state of human blood flow can be found by using.

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Newton's formula of speed of sound

Interference of sound

Phenomena of beats

Doppler's effect of sound

Light year is the unit of

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Distance

Time

Light

Velocity

The ratio of the velocities of wate in a pipe lying horizontally at two ends is 1 : 4 The ratio of diameters of pipe at these two ends is.

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1 : 2

2 : 1

1 : 4

4 : 1

Sound travel faster in

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CO2

H2

O2

He

The distance between two consecutive trough is called.

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Displacement

Amplitude

Wave length

Wave front

Which of the following is not directed along the fixed axis of rotation.

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Angular displacement

Angular momentum

Centripetal acceleration

Angular acceleration

The law of conservation of mass gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

A bullet shot straight up, return to its starting point in 10 sec. Its initial speed was

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9.8 ms-1

24.5 ms-1

49 ms-1

98 ms-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

Pi radian is equal to.

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0^o

90^o

180^o

57.3^o

A Carnot engine has an efficiency of 50% when its sink temperature is at 27 ^oC. The temperature of source.

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273^oC

300 ^oC

327 ^oC

373 ^oC

In case of planets centripetal force is provided by

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Coulomb's force

Electrostatic force

Gravitational force

Magnetic force

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

the quantities which are define din term of other physical quantieis are called

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Base Quantities

Derived quantities

Bothe a and b

None of these

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