11-3-PHYSICS1. When source of sound moves towards a stationary observe

1.	11-3-PHYSICS1. When source of sound moves towards a stationary observer, the wavelength of soundreceived by himA) decreases while frequency increasesB) remains the same whereas frequency increasesC) increases and frequency also increasesD) decreases while frequency remains the same
Answer» EXPLANATION: As source of sound moves towards the observer , the frequency increases. But the velocity of sound remains same that HENCE, wavelength decreases so answer is OPTIONAL -(A)

11-3-PHYSICS1. When source of sound moves towards a stationary observer, the wavelength of soundreceived by himA) decreases while frequency increasesB) remains the same whereas frequency increasesC) increases and frequency also increasesD) decreases while frequency remains the same

Answer»

EXPLANATION:

As source of sound moves towards the observer , the frequency increases. But the velocity of sound remains same that

HENCE, wavelength decreases

so answer is OPTIONAL -(A)

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11-3-PHYSICS1. When source of sound moves towards a stationary observer, the wavelength of soundreceived by himA) decreases while frequency increasesB) remains the same whereas frequency increasesC) increases and frequency also increasesD) decreases while frequency remains the same​

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11-3-PHYSICS1. When source of sound moves towards a stationary observer, the wavelength of soundreceived by himA) decreases while frequency increasesB) remains the same whereas frequency increasesC) increases and frequency also increasesD) decreases while frequency remains the same