1.

A railroad train is travelling at 30.0 m/s in still air. The frequency of the note emitted by the trainwhistle is 262 Hz. Speed of sound in air is 340 m/s.

Answer»

Frequency heard by a passenger on ANOTHER TRAIN moving in the opposite direction to the first at18.0 m/s and approaching the first is 302 HZ
Frequency heard by a passenger on another train moving in the opposite direction to the first at18.0 m/s and receding from the first is 228 Hz
Frequency heard by a passenger on another train moving in the same direction of the first at18.0 m/s and approaching the first is 272 Hz
Frequency heard by a passenger on another train moving in the same direction of the first at18.0 m/s and receding the first is 253 Hz

ANSWER :A::B::C::D


Discussion

No Comment Found

Related InterviewSolutions