Question # 1

The actual efficiency of property turned petrol engine is.

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20% to 30%

30% to 35%

40% to 45%

25% to 30%

A fog droplets are in freely falling condition,. the ratio of their radii is 2:3, the ratio of their terminal velocities will be.

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2:3

4:6

4:9

9:4

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

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Work

Pressure

Speed

Density

Sound wave can not be

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Reflected

Refracted

Diffracted

Polarized

Work has dimension lime

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Torque

Momentum

Velocity

Power

Star moving towards the earth show

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Red shift

Blue shift

Green shift

Yellow shift

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

If a convex lens is used as a magnifying glass, whcih lens will give higher magnification that has.

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Short size

Long focal length

Large size

Short focal length

Dot product of two non zero vectors is zero it angle between them is.

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30^o

60^o

45^o

90^o

Time period of simple pendulum only depends on

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Mass

Amplitude

Density

Length

Unit of impulse is equivalent to that of.

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Force

Momentum

Acceleration

Velocity

Name the quantity which is a vector.

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Speed

Force

Temperature

Density

10 N and 20 N are acting on a body of mass 2 kg the minimum acceleration will be.

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10 ms-2

20 ms-2

60 ms-2

5 ms-2

The ratio of size of image and size of object is

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Focal length

Magnification

Resolving power

Principle focus

The term in Bernoulli's equation has the same unit as

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Work

Volume

Pressure

Force

Cloud formation in atmosphere is an example of.

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Isothermal process

Isochoric process

Adiabatic process

Isobaric process

In which medium the speed of sound is greater.

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Oxygen

Air

Water

copper

The value of solar constant.

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1.4 kW m-2

1.0 kW m-2

1.6 kW m-2

2 kw m-2

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11th Class Part 1 Physics Test Online MCQs With Answers

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