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प्रश्न
Write a relationship between the angle of incidence and angle of refractions for a given pair of media
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उत्तर
The ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant for a given pair of media called the refractive index
`(sin i)/(sin r) = mu`
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संबंधित प्रश्न
After tracing the path of a ray of light passing through a rectangular glass slab for four different values of the angle of incidence, a student reported his observations in tabular form as given below:
| S.No | ∠ i | ∠ r | ∠ e |
| I | 30° | 19° | 29° |
| II | 40° | 28° | 40° |
| III | 50° | 36° | 50° |
| IV | 60° | 40° | 59° |
The best observation is
(A) I
(B) II
(C) III
(D) IV
Which colour of light travels fastest in any medium except air?
For which colour of white light, is the refractive index of a transparent medium the most?
Light of a single colour is passed through a liquid having a piece of glass suspended in it. On changing the temperature of liquid, at a particular temperature the glass piece is not seen. When is the glass piece not seen?
A ray of light falls normally on the surface of a transparent glass slab. Draw a ray diagram to show its path and also mark angle of incidence and angle of emergence.
Rahim recorded the following sets of observations while tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence.
|
S. No. |
Angle of incidence |
Angle of refraction |
Angle of emergence |
|
I |
45° |
41° |
45° |
|
II |
40° |
38° |
38° |
|
III |
45° |
41° |
40° |
|
IV |
41° |
45° |
41° |
The correct observation is recorded at serial number:
(1) I
(2) II
(3) III
(4) IV
Draw a diagram to show the splitting of white light into its constituent colours.
Comment on the statement ‘The refractive index of glass is 3/2.’
The refractive index of glass with respect to air is 3/2. What is the refractive index of air with respect to glass?
