Advertisements
Advertisements
Question
Angle of deviation is the angle which the ______ ray makes with the direction of ______ray.
Advertisements
Solution
Angle of deviation is the angle which the emergent ray makes with the direction of incident ray.
APPEARS IN
RELATED QUESTIONS
Name the factors affecting the critical angle for the pair of media.
Which colour of light has a higher critical angle? Red light or green light.
Write down the relationship between the critical angle and the refractive index of the medium.
If a ray of light passes from medium I to medium II without any change of direction, what can be said about the refractive indices of these media (angle I is not 0)?
State one factor on which a critical angle for a given pair of media depends. The critical angle for the glass-air interface is 45° for the yellow light. Will it be equal to, less than or greater than 45° for (i) red light, (ii) blue light?
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
For a ray of light, the critical angle is minimum when it travels from ______.
The entire light is reflected back into the denser medium is called ______.
What is a mirage? How does it occur?
A jar of height h is filled with a transparent liquid of refractive index µ (Figure). At the centre of the jar on the bottom surface is a dot. Find the minimum diameter of a disc, such that when placed on the top surface symmetrically about the centre, the dot is invisible.
