Chapter 16 – Waves and Acoustics
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 16 - Waves and Acoustics
A string under a tension of 100 N , emitting its fundamental mode , gives 5beats/s with a tuning fork. When the tension is increased to 121 N, again 5 beats/s are heard. The frequency of the fork is-duplicate-1
05
Nov
A string under a tension of 100 N , emitting its fundamental mode , gives 5beats/s with a tuning fork. When the tension is increased to 121 N, again 5 beats/s are heard. The frequency of the fork is-duplicate-1 A string under a tension of 100 N again 5 beats/s are heard. The frequency of [...]
Figure 7.88 shows a stretched string of length L and pipes of length L,2L,L/2andL/2 in options (a) , (b), (c ) and (d) respectively . The string ‘s tension is adjusted until the speed of waves on the string equals the speed of sound waves in the air . The fundamental mode of oscillation is the set up on the string . In which pipe will the sound produced by the string cause resonance ?
29
Oct
Figure 7.88 shows a stretched string of length L and pipes of length L,2L,L/2andL/2 in options (a) , (b), (c ) and (d) respectively . The string ‘s tension is adjusted until the speed of waves on the string equals the speed of sound waves in the air . The fundamental mode of oscillation is [...]
A wire of length l having tension T and radius r vibrates with fundamental frequency f. Another wire of the same metal with length 2l having tension 2T and radius 2r will vibrate with fundamental frequency :
29
Oct
A wire of length l having tension T and radius r vibrates with fundamental frequency f. Another wire of the same metal with length 2l having tension 2T and radius 2r will vibrate with fundamental frequency : An open pipe of length l is sounded together with another open organ pipe of length l+x in [...]
An open pipe of length l is sounded together with another open organ pipe of length l+x in their fundamental tones. Speed of sound in air is v. The beat frequency heard will be (x
29
Oct
An open pipe of length l is sounded together with another open organ pipe of length l+x in their fundamental tones. Speed of sound in air is v. The beat frequency heard will be (x An open pipe of length l is sounded together with another open organ pipe of length l+x in their fundamental [...]
A closed pipe and an open pipe of same length produce 2 beats, when they are set into vibrations simultaneously in their fundamental mode. If the length of the open pipe is halved, and that of closed pipe is doubled, and if they are vibrating in the fundamental mode, then the number of beats produced is:
29
Oct
A closed pipe and an open pipe of same length produce 2 beats, when they are set into vibrations simultaneously in their fundamental mode. If the length of the open pipe is halved, and that of closed pipe is doubled, and if they are vibrating in the fundamental mode, then the number of beats produced [...]
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A closed pipe and an open pipe of same length produce 2 beats ,
and if they are vibrating in the fundamental mode ,
and that of closed pipe is doubled ,
then the number of beats produced is: ,
when they are set into vibrations simultaneously in their fundamental mode. If the length of the open pipe is halved ,
An open and a closed pipe have same length . The ratio of frequency of their nth overtone is
29
Oct
An open and a closed pipe have same length . The ratio of frequency of their nth overtone is An open and a closed pipe have same length . The ratio of frequency of their nth overtone is October 29, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 16 - Waves and [...]
The displacement y of a particle executing periodic motion is given by y=4cos^2(2/t)sin(1000t) How many independent harmonic motion may be considered to superpose to result this expression:
29
Oct
The displacement y of a particle executing periodic motion is given by y=4cos^2(2/t)sin(1000t) How many independent harmonic motion may be considered to superpose to result this expression: The displacement y of a particle executing periodic motion is given by y=4cos^2(2/t)sin(1000t) How many independent harmonic motion may be considered to superpose to result this expression: October [...]
When the string of a sonometer of length L between the bridges vibrates in the first overtone , the amplitude of vibration is maximum at
29
Oct
When the string of a sonometer of length L between the bridges vibrates in the first overtone , the amplitude of vibration is maximum at the amplitude of vibration is maximum at When the string of a sonometer of length L between the bridges vibrates in the first overtone October 29, 2020 Category: Cengage JEE [...]
A closed organ pipe has a frequency ‘n’. If its length is doubled and radius is halved , its frequency nearly becomes .
29
Oct
A closed organ pipe has a frequency ‘n’. If its length is doubled and radius is halved , its frequency nearly becomes . A closed organ pipe has a frequency 'n'. If its length is doubled and radius is halved its frequency nearly becomes . October 29, 2020 Category: Cengage JEE Mains Physics by B.M [...]
Two organ pipe , both closed at one end , have lengths l and l+Δl. Neglect end corrections. If the velocity of sound in air is V, then the number of beats/s` is
29
Oct
Two organ pipe , both closed at one end , have lengths l and l+Δl. Neglect end corrections. If the velocity of sound in air is V, then the number of beats/s` is both closed at one end have lengths l and l+Δl. Neglect end corrections. If the velocity of sound in air is V [...]