Question # 1

The mechanism of transports energy of all the waves is

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Different

Same

Complicated

Easy

Angular momentum has the same unit as

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Impulse x distance

Power x time

Linear x time

work x frequency

One revolution is equal to.

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90^o

180^o

360^o

270^o

A wheel of radius 50 cm having an angular speed of a rad /s have linear speed.

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1.5 m/s

3.5 m/s

2.5 m/s

4.5 m/s

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 magnitude of A will be

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Zero

A²

1

A

A heat engine operates between the temperature 1000 K and 400 K, Its efficiency is.

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100%

70%

60%

50%

Food rich in proteins is:

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potato

grapes

vegetables

bread

At what speed the momentum and kinetic energy of a body having the same.

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1 ms-1

2 ms-1

4 ms-1

8 ms-1

If the radius of droplet becomes half, then its terminal velocity will become.

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Double

Half

One fourth

Remains same

Unit of impulse is equivalent to that of.

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Force

Momentum

Acceleration

Velocity

The motion of gas molecules is

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In the same direction

Random

Walls of container

Opposite to each other

The focal length of a concave lens is always

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+ve

-ve

Zero

None of these

Which is the process in which temperature of the system remains constant.

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Adiabatic process

Isochoric process

Isothermal process

Isobaric process

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

The centre of Newton's rings will be

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Dark

Bright

Coloured

Not visible

A man of mass 5 kg is falling freely, the fore acting on it will be

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5 N

9.8 N

19.6 N

49 N

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11th Class Part 1 Physics Test Online MCQs With Answers

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