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Which one of the following has the longest wavelength? A) Radio waves B) Sound waves C) X-rays D) Infra-red ray

Which one of the following has the longest wavelength? 

A)

Radio waves

B)

Sound waves

C)

X-rays

D)

Infra-red ray

 

Grade:11

2 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
3 years ago
Radio waves have the longest wavelength of all electromagnetic waves.
Vikas Amritiya
askIITians Faculty 230 Points
3 years ago

Radio waves have the longest wavelength of all electromagnetic waves. Their size can vary from a foot to a few miles long. Radio waves are used to transmit data for all sorts of things; radios, satellites, radar etc.

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