Questions
The driver of a bus approaching a big wall notices that the frequency of his bus’s horn changes from 420Hz to 490 Hz when he hears it after it gets reflected from the wall. Find the speed of the bus if speed of the sound is
detailed solution
Correct option is A
fa=f0C+VC-V⇒490420=1+V/C1-V/C⇒V=33013 m/s=91.38kmh≈91kmhTalk to our academic expert!
Similar Questions
An observer is moving towards the stationary source of sound, then
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests