Quality of a musical note depends on :

(1) Harmonics present

(2) The amplitude of the wave

(3) Fundamental frequency

(4) The velocity of sound in the medium

Subtopic:  Standing Waves |
 52%
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NEET 2023 - Target Batch - Aryan Raj Singh
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If T is the reverberation time of an auditorium of volume V then :

(1) T1V

(2) T1V2

(3) TV2

(4) TV

Subtopic:  Pressure Wave in Sound |
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NEET 2023 - Target Batch - Aryan Raj Singh
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The intensity level due to two waves of the same frequency in a given medium are 1 bel and 5 bel. Then the ratio of amplitudes is :

(1) 1 : 4

(2) 1 : 2

(3) 1 : 104

(4) 1 : 102

Subtopic:  Pressure Wave in Sound |
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Of the following the one which emits the sound of a higher pitch is :

(1) Mosquito

(2) Lion

(3) Man

(4) Woman

Subtopic:  Pressure Wave in Sound |
 59%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Two waves having sinusoidal waveforms have different wavelengths and different amplitudes. They will be having :

(1) Same pitch and different intensity

(2) Same quality and different intensity

(3) Different quality and different intensity

(4) Same quality and different pitch

Subtopic:  Pressure Wave in Sound |
 60%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The ends of a stretched wire of length L are fixed at x = 0 and x = L. In one experiment, the displacement of the wire is y1=Asin(πx/L)sinωt and energy is E1, and in another experiment its displacement is y2=Asin(2πx/L)sin2ωt and energy is E2. Then :

(1) E2 = E1

(2) E2 = 2E1

(3) E2 = 4E1

(4) E2 = 16E1

Subtopic:  Energy of Waves |
 58%
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In the experiment for the determination of the speed of sound in air using the resonance column method, the length of the air column that resonates in the fundamental mode, with a tuning fork is 0.1 m. when this length is changed to 0.35 m, the same tuning fork resonates with the first overtone. Calculate the end correction :

(1) 0.012m

(2) 0.025m

(3) 0.05m

(4) 0.024m

Subtopic:  Standing Waves |
 76%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Two identical stringed instruments have a frequency 100 Hz. If the tension in one of them is increased by 4% and they are sounded together then the number of beats in one second is :

(1) 1

(2) 8

(3) 4

(4) 2

Subtopic:  Beats |
 67%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The difference between the apparent frequency of a source of sound as perceived by an observer during its approach and recession is 2% of the natural frequency of the source. If the velocity of sound in air is 300 m/sec, the velocity of the source is : (It is given that velocity of source << velocity of sound) 

(1) 6 m/sec

(2) 3 m/sec

(3) 1.5 m/sec

(4) 12 m/sec

Subtopic:  Doppler's Effect (OLD NCERT) |
 62%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Two whistles A and B produce notes of frequencies 660 Hz and 596 Hz respectively. There is a listener at the mid-point of the line joining them. Now the whistle B and the listener start moving with speed 30 m/s away from the whistle A. If the speed of sound be 330 m/s, how many beats will be heard by the listener :

(1) 2

(2) 4

(3) 6

(4) 8

Subtopic:  Beats |
 75%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh