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9th Class - Physics | Chapter: Sound MCQs
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(A) Particles of medium travel from one place to another
(B) There is no moisture in the atmosphere
(C) Disturbance travel from one place to another
(D) Both particles as well as disturbance travel from one place to another
(A) hertz
(B) meter/second
(C) meter
(D) unitless
(A) Sound will be louder but the pitch will not be different
(B) Sound will be louder and the pitch will also be higher
(C) Sound will be louder but the pitch will be lower
(D) Both loudness and pitch will remain unaffected
(A) 6000 m
(B) 3000 m
(C) 15000 m
(D) 3500 m
(A) Infrasonic sounds
(B) Ultrasonic sounds
(C) Audible Sounds
(D) None of these
(A) Increases
(B) Decreases
(C) Does not change
(D) First increases then becomes constant
(A) hertz
(B) decibel
(C) meter/second
(D) second
(A) Wavelength
(B) Waveform
(C) Wave frequency
(D) Wave amplitude
(A) (i) and (iii)
(B) only (ii)
(C) (ii) and (iv)
(D) only (iv)
(A) Ultrasound
(B) Infrasound
(C) Audible sound
(D) None of these
(A) Sea water
(B) Ground glass
(C) Human blood
(D) Dry air
(A) Bats
(B) Slinky
(C) Tuning fork
(D) None of these
(A) 20 m
(B) 0.2 m
(C) 200 m
(D) 2 m
(A) Multiple refractions
(B) Multiple reflections
(C) Wave motion
(D) None of these
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