Question # 1

The dimensional of potential energy per unit volume are same as that of.

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Work

Pressure

Speed

Density

The amount of inertia of 10 kg hoop about the axis of rotation perpendicular to its plane having radius 5 m is

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50 kgm2

100 K gm2

150 K gm2

250 K gm2

A layer of rock holding water that allows water to percolate through it with pressure is called.

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Geyeser

Aquifer

Stem vent

Hot spring

Wavelength of a wave for closed pipe having length 'l' in the fundamental mode is.

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2 l

1/2

4 l

l

If a vector of magnitude 10 N along y-axis then its component along x-axis is

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0 N

5 N

8.66 N

10 N

The SI unit of work is

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Newton

Joule

Mol

Calorie

A direction of torque is

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Along the position vector r

Perpendicular to both r and f

Along the direction of force F

Opposite to the direction of r

The work done by centripetal force is

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(-)ve

(+)ve

Maximum

Zero

Inertia may expressed in

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Kg

Newton

Watt

Joule

The frictional force is

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Conservative force

Non conservative force

Electric force

Magnetic force

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

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45°

60°

75°

90°

If the tension a stretched string is made four times then the velocity of wave.

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Remains same

Is halved

Becomes twice

Becomes 4 times

The frequency of waves produced in microwave oven is

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1435 Hz

2450 MHz

1860 MHz

2850 Hz

73.650 rounded off upto one decimal is

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73.6

74.00

73.7

73.65

The distance covered by wave in 1 sec is

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wavelength

Wave number

Wave speed

Frequency

The product of rotational inertial 'I' and angular velocity ' w' is equal to.

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Torque

Linear momentum

Angular momentum

Force

The angle of projection for which its maximum height and horizontal range are equal

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46 ^o

56^o

66^o

76^o

One mile is equal to

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1.625 km

1.609 km

1.325 km

1.850 km

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