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प्रश्न
What do you understand by the statement the refractive index of glass is 1.5 for white light?
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उत्तर
The refractive index of glass is 1.5 for white light means white light travels in air 1.5 times faster than in glass.
संबंधित प्रश्न
A ray of light passes from glass into air. The angle of refraction will be:
(a) equal to the angle of incidence
(b) greater than the angle of incidence
(c) smaller than the angle of incidence
(d) 45°
After tracing the path of rays of light through a glass slab for three different angles of incidence, a student measured the corresponding values angle of refraction r and angle of emergence e and recorded them in the table given below:
|
S. No. |
∠i |
∠i |
∠e |
|
I |
30° |
20° |
31° |
|
II |
40° |
25° |
40° |
|
III |
50° |
31° |
49° |
The correct observations are:
(A) I and II
(B) II and III
(C) I and III
(D) I, II and III
Define the term refractive index of a medium. What do you understand by the statement 'the refractive index of glass is 1.5 for white light'?
Why do the faces of persons sitting around campfire appear to shimmer?
Write a relation between the angle of incidence (i), angle of emergence (e), angle of the prism (A), and angle of deviation (d) for a ray of light passing through an equilateral prism.
Draw ray of light bending towards the normal while passing from air to glass. Label your diagrams.
Complete the ray diagram showing its emergence into the air after passing through the prism.
How will you verify the laws of refraction or how the refractive index of glass is determined in the laboratory?
The refractive index of glass with respect to air is 3/2. What is the refractive index of air with respect to glass?
