Advertisements
Advertisements
Question
In which of the following four diagrams is the correct path of a ray of light passing through a glass prism shown ?
Advertisements
Solution
When a ray of light enters from air into the glass prism, it bends towards the normal and when it goes out from glass to air, it bends away from the normal. This can be observed only in figure A.
Hence, the correct option is A.
APPEARS IN
RELATED QUESTIONS
Study the following diagrams in which the path of a ray of light passing through a glass prism as traced by four students P, Q, R and S is shown:

The student who has traced the path correctly is
(A) P
(B) Q
(C) R
(D) S
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
Why do different colours of white light bend through different angles with respect to the incident beam of light?
Which of the following colour of white light is least deviated by the prism?
(a) green
(b) violet
(c) indigo
(d) yellow
Which of the following coloured light has the least speed in glass prism?
(a) violet
(b) yellow
(c) red
(d) green
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
Out of air and glass, which is optically rarer? Give reason.
Define the term dispersion of light.
While performing the experiment to trace the path of a ray of light passing through a glass prism, four students marked the incident ray and the emergent ray in their diagrams in the manner shown below. 
(A) I
(B) II
(C) III
(D) IV
State two properties of ultra-violet radiations which differ from visible light.
Draw a neat and labelled diagram for dispersion of light.
