Class 11 NEET Physics Waves Questions Questions

© examsiri.com
Question : 88 of 94
 
Marks: +1, -0
Two trains move towards each other with the same speed. The speed of sound is 340m∕s. If the height of the tone of the whistle of one of them heard on the other changes to
9
8
times, then the speed of each train should be
(1991)
Go to Question: