A longitudinal wave of wavelenght 12m has a frequency of 40Hz. What is its speed? On entering a different medium its speed doubles. What happens to:
(i)its frequency
(ii)its wavelenght?

Question

anonymous · Answer

Speed = 12*40
= 480 m/s
Sorry, but I'm not sure how to calculate frequency and wavelength if speed doubles.

anonymous · Answer

=/

anonymous · Answer

when it become faster, wave length become shorter, frequency  increase, i think wavelength will be half and frequency will be twice, not very sure

anonymous · Answer

other way around