Question # 1

The pressure will change in the pipe, as the fluid moves through that pipe of varying

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cross-section

height

none of them

both of them

The behaviour of gases is well accounted by the kinetic theory based on

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microscopic approach

macroscopic approach

both of them

none of them

The input resistance of the OP-AMP is the resistance between the

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(-) input and output

(+) input and output

(-) and (+) inputs

between any inputs

In the force applied is parallel to the direction of motion, then work done is:

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Maximum

Minimum

Zero

None of these

Direction of motion ______ in circular motion:

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Changes off and on

Changes continuously

Does not change

None of them

The current is measured in

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volts

watt

ampere

ohm

In rotational motion, analogue of force F us called:

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Couple

Torque

Mass

Moment of intertia

The horizontal component of a projectile moving with initial velocity of 500 ms^-1at an angle 60° to x-axis is

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500 ms^-1

1000 ms^-1

250 ms^-1

Zero

Majority charge carriers in the p-region of p-n junction are:

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electrons

positrons

Holes

Neutrons

None of these

Distance covered by a freely falling body in 2 sec will be

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4.9 m

19.6 m

29.2 m

44.1 m

The property of light which does not change with the nature of the medium is:

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Frequency

Amplitude

Wavelength

None of these

Zirconia is classified as:

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Ceramic solid

Ionic compound

Metal

Either A or B

Either B or C

The minimum energy required by an electron to eject from metal surface is known as:

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Photo energy

Critical energy

Threshold energy

Work function

The electrons occupying the conduction band are known as

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conduction electrons

free electrons

both of them

none of them

The equation W = ________𝜟U represents:

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Thermal process

adiabatic process

Isobaric process

None of these

Rocket engines lift a rocket from the earth surface because hot gas with high velocity

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Push against the earth

Push against the air

React against the rocket and push it up

Heat up the air which lifts the rocket.

A semiconductor in its extremely pure form in known as

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Extrinsic semiconductor

Intrinsic semiconductor

Both a and b

None of these

If the focal length of the eye piece 25.0 mm find its magnification

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12.0

14.0

- 11.0

- 13.0

The speed of a falcon in a dive is

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23 ms^-1

37 ms^-1

40 ms^-1

43 ms^-1

Capacitor can be charged by transferring

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Negative charge

Positive charge

Both

None them

The rater of flow is measure in

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Liter-sec

Liter/sec

Liter/sec²

Sec/liter

The acceleration produced in the body varies

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Directly with the applied force

Inversely to the mass of the body

Both

None of these

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