JEE Main & Advanced
JEE Main Paper (Held On 10 April 2015)
question_answer
A bat moving at \[10m{{s}^{-1}}\] towards a wall sends a sound signal of ROOO Hz towards it. On reflection it hears a sound of frequency f. The value of f in Hz is dose to (speed of sound \[=320m{{s}^{-1}}\])
JEE Main Online Paper (Held On 10 April 2015)