Advertisements
Advertisements
प्रश्न
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is ______.
पर्याय
0°
45°
60°
90°
Advertisements
उत्तर
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is 0°.
APPEARS IN
संबंधित प्रश्न
In the given figure PQ and PR are the two light rays emerging from an object P. The ray PQ is refracted as QS.
- State the special name given to the angle of incidence ∠PQN of the ray PQ.
- What is the angle of refraction for the refracted ray QS?
- Name the phenomenon that occurs if the angle of incidence ∠PQN is increased.
- The ray PR suffers partial reflection and refraction on the water-air surface. Give reason.
- Draw in the diagram the refracted ray for the incident ray PR and hence show the position of image of the object P by the letter P’ when seen vertically from above.
Images formed by totally reflecting prisms are brighter than the image formed by ordinary reflected light, why?
Choose the correct option.
Consider the following phenomena/ applications: P) Mirage, Q) rainbow, R) Optical fibre and S) glittering of a diamond. Total internal reflection is involved in
Choose the correct option.
Angles of deviation for extreme colours are given for different prisms. Select the one having maximum dispersive power of its material.
The angle of minimum deviation produced by a thin glass prism in air is 'δ'. If that prism is immersed in water, the angle of minimum deviation will be ______.
( aμg = refractive index of glass w.r.t, air aμw = refractive index of water w.r.t. air)
Optical fibre communication uses the principle of ______.
The twinkling effect of star light is due to ______.
A green light is incident from the water to the air-water interface at the critical angle (θ). Select the correct statement.
Small air bubbles rising up a fish tank appear silvery when viewed from some particular angle is due to the ______.
