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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
one year ago
Radio waves have the longest wavelength of all electromagnetic waves.
Vikas Amritiya
askIITians Faculty 238 Points
one year 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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