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Question: Answered & Verified by Expert
If the speed of a wave doubles as it passes from shallow water into deeper water, its wavelength will be
PhysicsElectromagnetic WavesVITEEEVITEEE 2008
Options:
  • A unchanged
  • B halved
  • C doubled
  • D quadrupled
Solution:
1096 Upvotes Verified Answer
The correct answer is: doubled
We have, speed $=$ frequency $\times$ wavelength
Also, when a wave passes from one medium to the other, its frequency remains constant.
$\therefore$ speed $\propto$ wavelength
Therefore, when the speed of a wave doubles, its wavelength also doubles.

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