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
State the conditions required for total internal reflection of light to take place
A ray of light travels from water to air as shown in the diagram given below :
1) Copy the diagram and complete the path of the way. Given the critical angle for water is 48°.
2) State the condition so that internal reflection occurs in the above diagram.
Name two factors which affect the critical angle for a given pair of media. State how do the factors affect it.
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.
How does a ray of light bend when it travels from denser to rarer medium.
Complete the following diagram to show the path of the ray of a single colour in the diagram as if enters in and emerges out of the prism. Mark the angles wherever necessary. (Critical angle for glass = 42°).
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
The entire light is reflected back into the denser medium is called ______.
A Rainbow is a beautiful natural phenomenon formed because of the following:
A ray of light passes from vacuum into a medium of refractive index µ, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is ______.
