MCQ : Sound - 1 | 10 Questions MCQ Test

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This mock test of MCQ : Sound - 1 for Class 9 helps you for every Class 9 entrance exam. This contains 10 Multiple Choice Questions for Class 9 MCQ : Sound - 1 (mcq) to study with solutions a complete question bank. The solved questions answers in this MCQ : Sound - 1 quiz give you a good mix of easy questions and tough questions. Class 9 students definitely take this MCQ : Sound - 1 exercise for a better result in the exam. You can find other MCQ : Sound - 1 extra questions, long questions & short questions for Class 9 on EduRev as well by searching above.

QUESTION: 1

Wave motion transfers

A.
momentum
B.
velocity
C.
energy
D.
mass

Solution:

Wave motion transfers energy from one point to another, often with no permanent displacement of the particles of the medium —that is, with little or no associated mass transport. They consist, instead, of oscillations or vibrations around almost fixed locations.

QUESTION: 2

In which of the following media will sound travel the faster?

A.
solid
B.
liquid
C.
gas
D.
nothing can be decided

Solution:

QUESTION: 3

The wave having an amplitude of 5 cm and frequency f = 100 Hz can be best represented by

Solution:

QUESTION: 4

The upper frequency limit of the audible range of human hearing is about

A.
20 kHz
B.
2000 Hz
C.
2 kHz
D.
2,000,000 Hz

Solution:

QUESTION: 5

Absorbent materials are to be used while making interior design in an auditorium as

A.
echo is to be increased
B.
To prevent reverberation
C.
it has to look good
D.
sound travels with a lesser velocity

Solution:

QUESTION: 6

Infrasonic waves have frequencie

A.
below 20 Hz
B.
between 20 Hz and 20,000 Hz
C.
above 20,000 Hz
D.
no upper or lower limit of frequencies

Solution:

QUESTION: 7

Speed of sound in air and water are given as v_a and v_w respectively. Then

A.
v_a = v_w
B.
v_a > v_w
C.
v_w > v_a
D.
v_a = 2v_w

Solution:

QUESTION: 8

Sound cannot travel throug

A.
air
B.
water
C.
iron
D.
space

Solution:

QUESTION: 9

The separation between T and C in the figure given is

A.
λ
B.
2λ
C.
λ/2
D.
4λ

Solution:

QUESTION: 10

When we change feeble sound into loud sound we increase its

A.
frequency
B.
amplitude
C.
velocity
D.
wavelength

Solution:

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MCQ : Sound - 1

10 Questions MCQ Test Science Class 9 | MCQ : Sound - 1

Wave motion transfers

In which of the following media will sound travel the faster?

The wave having an amplitude of 5 cm and frequency f = 100 Hz can be best represented by

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