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Asked by saineerajbudumuru1218 | 30 Jun, 2020, 16:54: PM
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 A stationary observer receives sound from two identical tuning forks, one of which approaches and the other one recedes with the same speed (much less than the speed of sound). The observer hears 2 beats/ sec. The oscillation frequency of each tuning fork is v0=1400 Hz and the velocity of sound in air is 350 m/s. The speed of each tuning fork is close to - 
O n e space t u n i n g space f o r k space a p p r o a c h e s space a n d space o t h e r space r e c e d e s space T h u s comma space f subscript 1 space equals space open parentheses fraction numerator C over denominator C minus v end fraction close parentheses f subscript 0 space f subscript 2 space equals space open parentheses fraction numerator C over denominator C plus v end fraction close parentheses f subscript 0 space B e a t space f r e q u e n c y space equals space f subscript 1 space minus space f subscript 2 space equals space 2 T h u s comma space space c f subscript 0 space open parentheses fraction numerator 1 over denominator c minus v end fraction minus fraction numerator 1 over denominator c plus v end fraction close parentheses space equals space 2 equals c f subscript 0 space open parentheses fraction numerator c plus v minus c plus v over denominator c squared space minus space v squared end fraction close parentheses space equals space fraction numerator 2 c f subscript 0 v over denominator c squared space minus space v squared end fraction almost equal to fraction numerator 2 f subscript 0 v over denominator c end fraction space equals 2 space rightwards double arrow fraction numerator 2 cross times 1400 cross times v over denominator 350 end fraction equals 2 v space equals space 1 fourth space m divided by s  
Thus,correct option is (2)
Answered by Shiwani Sawant | 02 Jul, 2020, 22:44: PM
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JEE main - Physics
Second overtone frequency of a closed organ pipe is equal to the first overtone frequency of an open organ pipe. Further nth harmonic of closed organ pipe is also equal to the mth harmonic of open pipe where n and m are
Asked by mahamahalakshmi6630 | 24 Jun, 2024, 20:42: PM
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JEE main - Physics
principal of super positions
Asked by scnp978 | 15 Jun, 2024, 05:24: AM
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JEE main - Physics
y=1mm sin pie(x/2cm-t/0.01s) find equation of velocity speed of x=1cm,t=0.01 speed of x=3cmt=0.01 speed of x=5cm,t=0.01 speed of x=7cm,t=0.01
Asked by btennyson663 | 13 Jun, 2024, 20:02: PM
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JEE main - Physics
give me solution
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Asked by piyurawriya | 20 Feb, 2024, 13:03: PM
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JEE main - Physics
give me solutions
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Asked by piyurawriya | 19 Feb, 2024, 23:19: PM
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JEE main - Physics
A transverse travelling wave represented by a equation: y = (1 cm) sin[2nx – 20?t]; where X is in meters and t is in seconds, is travelling on a string of mass per unit length 0.01 Kg/m. Find the kinetic energy (in mille joule) of a portion of the string of length equal to one wavelength. (Take : ?² = 10)
Asked by siddhi.sristy | 21 Dec, 2023, 15:19: PM
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JEE main - Physics
A wave traveling from the left encounters a junction between the heavy string in which it moves and a lighter one. The incoming wave divides equally into a transmitted and reflected component. What is the ratio of densities of the string?
Asked by anaghaagarwal15 | 15 Mar, 2022, 17:15: PM
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JEE main - Physics
solve
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Asked by sarveshvibrantacademy | 09 Apr, 2019, 19:25: PM
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JEE main - Physics
solve the below question
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Asked by sarveshvibrantacademy | 27 Mar, 2019, 10:28: AM
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JEE main - Physics
solve the below question
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Asked by sarveshvibrantacademy | 26 Mar, 2019, 11:24: AM
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