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Published on: 05/12/2020
10th Standard Science Acoustics English Medium Free Online Test 1 Mark Questions with Answer Key 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.
A source emits a frequency of 1 kHz is moving toward a rest listener with a speed of 0.9 V, where V is the speed of sound wave. The frequency heard by the listener is ________.
10 Hz
0.1 Hz
100 Hz
10 kHz
2.
Sound propagates maximum in
gas
liquid
solid
all
3.
Which voice is likely to have minute frequency?
baby girl
boy
A man
A woman
4.
The pitch of sound depends on
frequency
amplitude
both
none
5.
Distance between two consecutive compressions is
λ
λ/2
λ/4
2λ
6.
The region of a sound wave having low pressure is
interference
refraction
rarefaction
compression
7.
The velocity of sound is affected by
temperature
density
pressure
all the above
8.
Velocity of sound in the atmosphere of a planet is 500 ms-1. The minimum distance between the sources of sound and the obstacle to hear the echo, should be
17 m
20 m
25 m
50 m
9.
If a sound wave travels with a frequency of 1.25 x 104 Hz at 344 ms-1, the wavelength will be
27.52 m
275.2 m
0.02752 m
2.752 m
10.
Velocity of sound in a gaseous medium is 330 ms-1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is
330 ms-1
660 ms-1
156 ms-1
990 ms-1
1.
(d)
10 kHz
2.
(c)
solid
3.
(c)
A man
4.
(a)
frequency
5.
(a)
λ
6.
(c)
rarefaction
7.
(d)
all the above
8.
(c)
25 m
9.
(c)
0.02752 m
10.
(a)
330 ms-1
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
