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Physics 10 Chapter 11 - Sound - 19
1.
What is ‘f’ in the relation “v = f λ”?
a) Speed of sound wave
b) Amplitude of sound wave
c) Frequency of sound wave
d) Wavelength of sound wave
2.
What is ‘λ’ in the relation “v = f λ”?
a) Wavelength of sound wave
b) Speed of sound wave
c) Frequency of sound wave
d) Amplitude of sound wave
3.
Calculate the speed of sound if frequency is 680 Hz and wavelength is 0.5 m?
a) 680.5 ms
-1
b) 679.5 ms
-1
c) 340 ms
-1
d) 194 ms
-1
4.
Calculate the frequency of sound if speed is 340 ms
-1
and wavelength is 0.5 m?
a) 170 Hz
b) 320 Hz
c) 680 Hz
d) 340 Hz
5.
Up to how much frequency bats can hear?
a) 120,000 Hz
b) 140,000 Hz
c) 160,000 Hz
d) 180,000 Hz
6.
Which of the following animals have highest frequencies of hearing?
a) Mice
b) Cats
c) Dogs
d) Bats
7.
Up to how much frequency mice can hear?
a) 140,000 Hz
b) 180,000 Hz
c) 100,000 Hz
d) 160,000 Hz
8.
Which of the following animals can hear frequencies up to maximum of 100,000 Hz?
a) Mice
b) Cats
c) Bats
d) Dogs
9.
Up to how much frequency dogs can hear?
a) 140,000 Hz
b) 35,000 Hz
c) 180,000 Hz
d) 160,000 Hz
10.
Which of the following animals can hear frequencies up to 120,000 Hz?
a) Bats
b) Cats
c) Mice
d) Dogs
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