Question # 1

Height of projectile is maximum at an angle of.

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45^o

60^o

30^o

90^o

Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will

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Decrease

Unchanged

Half

Increases

If a body revolves under centripetal force its angular acceleration is

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Non zero

Variable

Increasing

Zero

The product of cross sectional area of a pipe and speed of fluid along the pipe is

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Zero

Maximum

Constant

Variable

Identity the non conservative force among the following.

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Frictional force

Electrical force

Gravitational force

Elastic restoring force

Speed of sound in vacuum is

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280 ms-1

332 ms-1

333 ms-1

Zero ms-1

If the slope of a velocity time graph gradually decreases than body is said to be moving with

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Positive acceleration

Negative acceleration

Uniform velocity

None

The portion of the wave above mean level is called.

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Node

Antinode

Crest

Trough

Time period of simple pendulum only depends on

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Mass

Amplitude

Density

Length

the length of simple pendulum of time period 1 second is

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2 m

1 m

0.5

0.25 m

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

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Small

Large

Zero

None

Let A = Area of cross section of pipe, v = speed of fluid, then 'Av' is called.

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Volume flow rate

Energy flow rate

Mass flow rate

Pressure flow rate

In an object is placed in between focus point and Opticla center of a convex lens, the image formed by lens is.

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Real inverted

Virtual diminshed

Virtual inverted

Virtual erected

In vibrating string, the points where the amplitude is maximum are called.

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Nodes

Antinodes

Troughs

Crests

Blood pressure is measured by

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Hydrometer

Barometer

Sphygmomanometer

Galvanometer

The product of time period and frequency is.

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Zero

1

2

3

Sodium chloride in a flame gives

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Green light

White light

Red light

Yellow light

If a body of mass 5 kg is raised vertically through a distance of 1 m, then work done is.

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49 J

4.9 J

490 J

0.49 J

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11th Class Part 1 Physics Test Online MCQs With Answers

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