Refraction — Set 7

The sparkle of a diamond is mainly due to?

Diamond has refractive index 2.42 w.r.t air. What is its critical angle approximately?

Atmospheric refraction causes the Sun to be seen?

Due to atmospheric refraction, stars generally appear?

A ray goes from air to water (n = 1.33) with incidence 60 degrees. What is the angle of refraction approximately?

Which definition of absolute refractive index is correct?

Light goes from air to glass (n = 1.5) and the refraction angle is 30 degrees. What is the incidence angle approximately?

Which medium has the least refractive index for visible light?

If a ray falls along the normal to a surface, the angle of refraction is?

Speed of light in a medium is 2.0×10^8 m/s. What is its refractive index? (Take c = 3.0×10^8 m/s)?