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Recent questions tagged telegram-46223

(chatquestion)...Two car A and B are moving on two perpendicular roads towards a crossing with uniform speeds of 72 km/h & 36 km/h respectively. If car A blows horn of frequency 320 Hz then the frequency heard by the driver of car B when line joining the cars make 30° with the line of motion of car B is 340,720 337 (speed of sound = 330 m/s) (1) (330+5/3) Hz (2) (330-5/3) Hz (3) 335 Hz (4) 325 Hz

asked Jan 20, 2020 by balaji.thirumalai

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