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Electromagnetic Waves question

2019 · Q146
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Electromagnetic Waves question

2019 · Q146

NEETPhysicsElectromagnetic WavesMCQ+4 / −1
Which colour of the light has the longest wavelength?
  1. A
    blue
  2. B
    violet
  3. C
    red
  4. D
    green
View written solutionFree

Correct answer: C

Since, Red colour has least frequency. So, red has the longest wavelength among the given colour.

As, ν=vλ\nu = v\lambda ν=vλ

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