Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is _______ nm. - Science and Technology 1

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Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is _______ nm.

Options

  • 400

  • 500

  • 600

  • 700

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Solution

Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is 700 nm.

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Chapter 6: Refraction of light - Choose the correct option.

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What is refraction of light?


  Column I Column II Column III
1 Dispersion Long-sightedness Twinkling of stars
2 Refraction Splitting of white light into component colours Convex lens
3 Hypermetropia Change in the direction of the ray of light due to change in medium Spectrum of seven colours

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Figure

(a) 2.25
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(c) 6.45
(d) 9.25


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