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GRB Physics Class 12. We covered all the GRB Physics Class 12 in this post for free so that you can practice well for the exam.
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GRB Physics Class 12 Mock Test for Students
Quick Quiz
Which of the following emits the sound of a higher pitch?
(A) Mosquito
(B) Donkey
(C) Lion
(D) Man
Option a – Mosquito
Learned Indian classical vocalists do not like the accompaniment of a harmonium because
(A) the Intensity of the notes of the harmonium is too large
(B) the Notes of the harmonium are too shrill
(C) the Diatonic scale is used in the harmonium
(D) the Tempered scale is used in the harmonium
Option d – the Tempered scale is used in the harmonium
When we hear a sound, we can identify its source from the :
(A) overtones present in the sound
(B) wavelength of sound
(C) amplitude of sound
(D) intensity of sound
Option a – overtones present in the sound
Which of the following can be classified as noises?
(A) The firing of a gun
(B) ticks of a clock
(C) Sound of thunder
(D) All mentioned above
Option d – All mentioned above
Which of the following can be classified as musical sound?
(A) Humming of bees
(B) Chirping of birds
(C) Sound produced by harmonium
(D) All mentioned above
Option d – All mentioned above
The quality of a musical note depends on
(A) amplitude
(B) frequency
(C) wavelength
(D) the number of harmonics present
Option d – the number of harmonics present
The Loudness of a note of sound is :
(A) directly proportional to the amplitude of the wave
(B) directly proportional to the square of the amplitude of the wave
(C) inversely proportional to the square root of the amplitude of the wave
(D) inversely proportional to the amplitude of the wave
Option b – directly proportional to the square of the amplitude of the wave
The voice of a lion is different from that of a mosquito because
(A) the two animals have different sizes
(B) the two voice travel at different velocities
(C) the sounds have different pitches
(D) the sounds have different phases
Option c – the sounds have different pitches
The lowest pitch out of the following sources is that of
(A) a boy
(B) a lion
(C) a man
(D) a mosquito
Option b – a lion
The female voice has :
(A) higher pitch than male
(B) lower pitch than male
(C) equal pitch
(D) no pitch
Option a – higher pitch than male
We covered all the grb physics class 12 above in this post for free so that you can practice well for the exam.
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