
Study the ray diagram and answer the questions.

List two properties of image formed.

Important Questions on Light Reflection and Refraction

For what position of object will magnification be ?

The following table gives the values of refractive indices of a few media.
Medium | Water | Crown glass | Rock salt | Ruby | Diamond |
Refractive index |
Use this table to give an example of a medium pair so that light speeds up when it goes from one of these media to another.

1 | 2 | 3 | 4 | 5 | |
---|---|---|---|---|---|
Medium | Water | Crown glass | Rock salt | Ruby | Diamond |
Refractive index | 1.33 | 1.52 | 1.54 | 1.71 | 2.42 |
Use this table to give an example of a medium pair so that light slows down when it goes from one of these media to another.

The path of a light ray, from air to three different media (a), (b), and (c), for a given angle of incidence, is as shown. Study the diagram carefully and answer the following questions.
Which of the three media (a), (b) or (c) has maximum optical density?

The path of a light ray, from air to three different media (a), (b), and (c), for a given angle of incidence, is as shown. Study the diagram carefully and answer the following questions.
(a)
(b)
(c)
Through which of the three media, will the speed of light be maximum?

The path of a light ray, from air to three different media (a), (b), and (c), for a given angle of incidence, is as shown. Study the diagram carefully and answer the following questions.
a)
b)
c)
If na, nb, and nc, denote refractive indices of the three media, arrange na, nband nc, in descending order?


