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Asked by sarveshvibrantacademy | 08 Apr, 2019, 10:14: AM
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O p t i o n space C space i s space c o r r e c t u sin g space d o p p l e r space e f f e c t space e q u a t i o n space w e space c a n s space s e e f apostrophe space equals space f open parentheses fraction numerator v over denominator v minus v subscript s end fraction close parentheses w h e r e space f apostrophe i s space t h e space o b s e r v e d space f r e q u e n c y space b y space o b s e r v e r comma space f space i s space t h e space f r e q u e n c y space e m i t t e d space b y space s o u r c e comma space v space i s space t y e space s p e e d space o f space s o u n d space i n space t h e space g i v e n space m e d i u m space a n d space v s space i s space t h e space s p e e d space o f space s o u r c e space h e r e space w e space c a n space s e e space t h a t space o b s e r v e d space f r q u e n c y space i s space h i g h e r space t h a n space e m i t t e d space f r e q u e n c y space sin c e space d e n o m i n a t o r space i s space l e s s space t h a n space n u m e r a t o r. a n d space a s space w e space k n o w space f space equals space v over lambda c o m p a r i n g space f r e q u e n c y space f r o m space t h i s space e q u a t i o n space w e space c a n space s e e space sin c e space t h e space o b s e r v e d space f r e q u e n c y space i s space i n c r e a sin g space t h e n space i t space m e a n s space w a v e l e n g t h space m u s t space h e space d e c r e a s e d. space t h e n space t h e space v a l u e space o f space t h i s space f r a c t i o n space c a n space i n c r e a s e.
Answered by Ankit K | 08 Apr, 2019, 21:16: PM
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JEE main - Physics
A person standing 345 m from a large wall claps his hands facing the wall. The temperature of air is 25 degree C. Assume the speed of sound in air is 330 m/s at 0 degree C, and increases by 0.6 m/s for every degree rise in temperature. a) What is the speed (in m/s) of sound in air at 25 degree C? c) If the person was moving towards the wall at 10 m/s while he clapped, what will be the time (in seconds) after which he hears back the echo? (Give your answers up to 2 decimal places)
Asked by zr150349 | 04 Sep, 2023, 18:44: PM
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JEE main - Physics
a particle execute a shm of period 10sec& amplitude of 1.5 m calculate it's max acceleration & velocit
Asked by thaduripranitha | 29 Dec, 2021, 11:09: AM
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JEE main - Physics
A sound absorber  attentutes the sound level by 20dB . The intensity decrease by what factor?
Asked by sharadhabakam8 | 14 May, 2021, 12:02: PM
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JEE main - Physics
solve
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Asked by sarveshvibrantacademy | 08 Apr, 2019, 10:14: AM
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JEE main - Physics
solve the question below
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Asked by sarveshvibrantacademy | 24 Mar, 2019, 10:52: AM
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JEE main - Physics
solve the question below
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Asked by sarveshvibrantacademy | 23 Mar, 2019, 11:38: AM
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JEE main - Physics
solve the question below
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Asked by sarveshvibrantacademy | 20 Mar, 2019, 11:55: AM
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JEE main - Physics
solve the question below
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Asked by sarveshvibrantacademy | 20 Mar, 2019, 11:22: AM
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JEE main - Physics
plz solve the below question
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Asked by sarveshvibrantacademy | 20 Mar, 2019, 10:37: AM
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JEE main - Physics
plz solve my question as given below
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Asked by sarveshvibrantacademy | 18 Mar, 2019, 10:45: AM
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