The sparkling of a diamond is due to
A). Total internal reflection of light
B). Interference of light
C). Polarisation of light
D). Refraction of light
Total internal reflection of light
Diamond sparkles because of the total internal reflection that takes place in it, followed by the trapping of the light rays in it. Total internal reflection only takes place when light travels from a denser to a rarer medium.
1. A needle or a pin floats on the surface of water because of
2. A ball rolling along the ground gradually slows down and finally comes to rest is due to ________
5. Global warming is expected to result in
6. What type of lens is used in a magnifying glass
7. Purpose of an optical filter is to
8. A good conductor while carrying current is
9. Loudness of sound depends on
10. Which set of conditions represents the easiest way to liquify a gas