Question

17. Mohan is performing an experiment with four different

optical media, he trace the path of light in different media A,B,C

and D as below:

(i) Which of the following media has maximum optical density?

(a). A. (b) C. (c) D.

(d) B

(ii) Through which media with speed of light the maximum?

(a)B. (b) C. (c)D.

(d)A

(iii) Absolute refractive index of medium is maximum in:

(a)A. (b) B. (c) C

(d). D

(iv). Which is correct about absolute refractive index of a

medium?

(a)A>B. (b)C=B. (c)D>A.

(d) A=C​

Answer 1

Explanation:

1.b

2.c

3.a

4.d

this is the answer I think soo

hope it helps

Answer 2

(I) (c). D has the maximum optical density.

(II) (d) A has maximum speed of light

(III) Refractive index is maximum for (d) D.

(IV) (c) D>A is correct.

What is refractive index?

• Refractive index of a medium is defined as the ratio of speed of light in vacuum to the speed of light in that medium.
• $n=\frac{c}{v}$
• Medium with greater optical density has high refractive index and the one with less optical density has lower refractive index.
• Medium with high optical density will lower the speed of light and medium with low optical density will have greater speed of light.
• So, medium in which the angle of refraction is lowest, will have the maximum optical density.

Your question is missing the figure, hence it is incomplete. You might be referring to the image below: