Advertisements
Advertisements
प्रश्न
The diagram below shows a point source P inside a water container. Four rays A, B, C, D starting from the source P, are shown up to the water surface.
- Show in the diagram the path of these rays after striking the water surface. The Critical Angle for the water-air surface is 48°.
- Name the phenomenon which the rays B and D exhibit.
Advertisements
उत्तर
1)
2) Ray B shows the phenomenon of ‘refraction of light’ and ray D shows the phenomenon of ‘total internal reflection’.
APPEARS IN
संबंधित प्रश्न
State the conditions required for total internal reflection of light to take place.
Name two factors which affect the critical angle for a given pair of media. State how do the factors affect it.
Draw diagram to illustrate the total internal reflection.
Plot a graph between
Sine of angle of incidence versus sine of angle of refraction,
A ray of light incident at an angle of incidence ‘i’ passes through an equilateral glass prism such that the refracted ray inside the prism is parallel to its base and emerges from the prism at an angle of emergence ‘e’.
What can you say about the value of the angle of deviation in such a situation?
Answer the following question.
Define the critical angle of incidence and obtain an expression for it.
Answer the following question.
Why is prism binoculars preferred over traditional binoculars? Describe its working in brief.
The entire light is reflected back into the denser medium is called ______.
What are the conditions to achieve total internal reflection?
The critical angle for water, which has a refractive index of 1.33, is:
