Question # 1

Horizontal range is maximum when the angle of projectile is.

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0 o

30 o

45 o

60 o

The terminal velocity can be obtained by using

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Newton's law

Stock's law

Guass's law

None of these

For working of heat engine, there must be.

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A source

A sink

either of these

Both of these

The work done by centripetal force is

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(-)ve

(+)ve

Maximum

Zero

For angular momentum of system to remain constant, external torque should be.

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Small

Large

Zero

None

Standard metal according to Michelson's interferometer is equivalent to

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1553163.5 wave meter

3 x 108meter

15503000 meter

None of these

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

A double convex lens acts as diverging lens when the object is

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At infinity

Inside the focus

A way from focus

A a large distance from lens

The focal length of a concave lens is always

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+ve

-ve

Zero

None of these

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The measure of hotness or coldness of a substance is.

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Temperature

Heat

Internal energy

Energy

The diver spins faster when moment of inertia becomes.

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smaller

Greater

Constant

Zero

X-ray diffraction has been very useful in determining the structure of

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Hemoglobin

Stars

Galaxies

Stones

One complete round trip of a body is called

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Displacement

Time period

Vibration

Frequency

According to first law of thermodynamics the quantity which is conserved.

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Force

Momentum

Energy

Power

Usually the x-axis is taken as

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Vertical axis

Horizontal axis

+ve axis

-ve axis

In reversible process the entropy of system.

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Remain constant

Decrease

Increase

Becomes zero

Teh speed of sound in air is 340 m/s. If the pressure of air is doubled then the speed becomes.

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Double

Half

Four times

Remains same

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11th Class Part 1 Physics Test Online MCQs With Answers

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