Physics 10 Unit 10 MCQs Tests

In this post, we have prepared 2 MCQs tests of Federal Board Physics 10 Unit 10 MCQs Tests. For more Class 10 Physics MCQs Tests visit this page.

Physics 10 Unit 10 MCQs Tests

Practice MCQs Test No 1

/9

36

Class 10 Physics

Unit 10

Practice MCQs Test 1

1 / 9

Which of the following characteristics of a wave is independent of the others?

amplitude

frequency

wavelength

speed

2 / 9

If the mass of the bob of a pendulum is increased by a factor of 3, the period of the pendulum's motion will:

be increased by a factor of 2

remain the same

be decreased by a factor of 2

be decreased by a factor of 4

3 / 9

Which of the following devices can be used to produce both transverse and longitudinal waves?

a tuning fork

a ripple tank

a helical spring (slinky)

a string

4 / 9

A large ripple tank with a vibrator working at a frequency of 30 Hz produces 25 complete waves in a distance of 50 cm. The velocity of the wave is:

1500 cms^-1

60 cms^-1

53 cms^-1

750 cms^-1

5 / 9

In a vacuum, all electromagnetic waves have the same:

frequency

speed

wavelength

amplitude

6 / 9

Wave transfer:

frequency

velocity

energy

wavelength

7 / 9

The relation between v, f and λ of a wave is:

v f = λ

v λ = f

f λ = v

v = λ / f

8 / 9

Which of the following is a method of energy transfer?

radiation

all of these

wave motion

conduction

9 / 9

Which of the following is an example of simple harmonic motion?

the motion of simple pendulum

the motion of ceiling fan

a bouncing ball on a floor

the spinning of the Earth on its axis

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Practice MCQs Test No 2

/12

23

Class 10 Physics

Unit 10

Practice MCQs Test 2

1 / 12

What is the displacement of an object in simple harmonic motion when K.E=P.E?

x=x_o / √2

x=x_o² / 3

x=x_o

x=x_o / 4

2 / 12

If the length of the simple pendulum is halved its new time period ‘T’ will become:

T / 2

T / √2

√2 T

2 T

3 / 12

If the mass of bob of a pendulum is increased by a factor of ‘2’ then the period of pendulum motion will:

Remains same

Increase a factor of √2

Increase a factor of ‘2’

Increase a factor of ‘4’

4 / 12

What is the length of second’s pendulum?

1.02 cm

1.02 km

1.02 m

1.02 mm

5 / 12

What is the frequency of second pendulum?

0.5 Hz

2 Hz

1 Hz

1.5 Hz

6 / 12

S.I unit of spring constant “K” is:

Nm

N ^-1 m

Nm ^-1

Nm ^-2

7 / 12

If the time period of simple pendulum is one second, then its length on earth will be:

0.25 m

1.25 m

2.25 m

3.25 m

8 / 12

If F=0.08N and X=4cm then value of “K” is:

4 Nm ^-1

2 Nm ^-1

0.4 Nm ^-1

0.2 Nm ^-1

9 / 12

In case of vibratory motion, time period is reciprocal of the:

Distance

Frequency

Velocity

Wavelength

10 / 12

When a ball is gently displaced from the centre of a bowl, it starts oscillating about the centre due to:

Elastic force

Force of gravity

Force of friction

Magnetic force

11 / 12

The pendulum clock was invented by:

Newton

Galileo

Huygens

Faraday

12 / 12

If the length of a simple pendulum is doubled, then its new frequency f ^' becomes:

2 f

f / √2

f / 2

√2 f

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