Advertisements
Advertisements
प्रश्न
The adjacent diagram shows two right-angled isosceles prisms A and B. Complete the diagram to show the path of rays P and Q emerging out of the prism B. What principles have you used to complete the diagram?
Advertisements
उत्तर
The completed ray diagram is shown in the figure.
Following two principles are used to complete the diagram:
(1) A ray of light incident normally on the interface of two media passes undeviated.
(2) A ray of light striking the interface of two media (glass and air) from glass, at an angle of incidence, equal to 45° (which is greater than the critical angle = 42°) suffers total internal reflection.
APPEARS IN
संबंधित प्रश्न
Draw the diagram of a right-angled isosceles prism which is used to make an invented image erect.
Name two factors which affect the critical angle for a given pair of media. State how do the factors affect it.
Write the relation between the refractive index and critical angle for a given pair of optical media?
Total internal reflection can take place only if ______.
How are critical angles related to the refractive index of the 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°).
A particle is projected such that the horizontal range and vertical height are equal. Then the angle of projection is :
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.
A Rainbow is a beautiful natural phenomenon formed because of the following:
