Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

A train approaching a railway platform with a speed of 20 ms–1 starts blowing the whistle. Speed of sound in air is 340 ms–1. If the frequency of the emitted sound from the whistle is 640 Hz, the frequency of sound to a person standing on the platform will appear to be A. 600 Hz B. 640 Hz C. 680 Hz D. 720 Hz

A train approaching a railway platform with a speed of 20 ms–1 starts blowing the whistle. Speed of sound
in air is 340 ms–1. If the frequency of the emitted sound from the whistle is 640 Hz, the frequency of sound
to a person standing on the platform will appear to be
A. 600 Hz B. 640 Hz C. 680 Hz D. 720 Hz

Grade:

1 Answers

Vikas TU
14149 Points
one year ago
Dear student 
Correct option is C ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Good Luck ….............................................

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free