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Published on: 05/12/2020
10th Standard Science Acoustics English Medium Free Online Test 1 Mark Questions 2020-2021
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
What does it mean when a wave's amplitude increases?
Its frequency also increases
It is moving in denser medium
Its wavelength gets longer
It carries more energy
2.
The speed of sound in a medium depends upon
frequency
amplitude
wavelength
properties of the medium
3.
Sound waves do not travel through.
vacuum
solid
liquid
gases
4.
When sound travels through air, the air particles.
do not vibrate
vibrate but not in any fixed direction
vibrate perpendicular to the direction of wave propagation
vibrate along the direction of wave propagation
5.
6.
Sound propagates maximum in
gas
liquid
solid
all
7.
8.
Sound travels with a speed of 330 ms-1. What is the wavelength of sound whose frequency is 550 Hz?
0.6 m
0.7 m
0.4 m
0.2 m
9.
The region of increased pressure in a wave is called
crest
through
compression
particle
10.
The pitch of sound depends on
frequency
amplitude
both
none
11.
Infrasound can be heard or produced by
dog
bat
rhinoceros
human beings
12.
13.
A sound wave passes through gold rod and comes into the surrounding air. What is the relation between original wavelength A and new wavelength λ'?
λ=λ'
λ>λ'
λ<λ'
None of the above
14.
The velocity of sound is affected by
temperature
density
pressure
all the above
15.
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
speed
frequency
wavelength
none of these
1.
(d)
It carries more energy
2.
(d)
properties of the medium
3.
(a)
vacuum
4.
(d)
vibrate along the direction of wave propagation
5.
(b)
6.
(c)
solid
7.
(c)
8.
(a)
0.6 m
9.
(c)
compression
10.
(a)
frequency
11.
(c)
rhinoceros
12.
(d)
13.
(b)
λ>λ'
14.
(d)
all the above
15.
(d)
none of these
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
