Question

MATCH THE FOLLOWING:
Column 1 Column II (i) Twinkling stars. (A) Suspend
water drops
(ii) Blue sky. (B) Group of colours
(iii) Rainbow. (C) Scattering (iv) Spectrum (D) Changing
atmosphere​

Answer 1

Answer:

1. Twinkling stars - Changing  atmosphere
2. Blue sky            - Scattering
3. Rainbow           - Suspend  water drops
4. Spectrum         - Group of colors

Explanation:

1. The twinling effect of stars is due to the continuous refraction of light as it travels through the different layers of the atmosphere.
2. In the visible spectral region of sunlight, the blue region has a shorter wavelength. The color with a shorter wavelength undergoes more scattering and the sky appears blue.
3. The natural phenomenon of the rainbow occurs due to the dispersion of light. The water droplets enable the light to undergo dispersion.
4. Spectrum is the arrangement of colors in the decreasing order of wavelength or the increasing order of frequency.