Question

A ray of light of green colour travelling in air enters into glass [n = 1.5], its colour will become/remain

Red

Violet

Yellow

Green

Answer 1

Answer:

remains green

Explanation:

Answer 2

A ray of light of green color traveling in the air enters the glass [n = 1.5], then, its color will remain "Green". (option 4th)

• When a ray of light travels from air to glass, or from one medium to another, there is a change in its wavelength and speed, but the frequency remains the same. The frequency of light is constant, always.
• The color of a ray of light depends upon the frequency of the light. Now, since the frequency of light doesn't change, its color will also remain the same.
• Thus, the correct option will be "Green", that is, option fourth.

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