Question

Define, refractive index of a transparent medium. What is its unit? Which has a higher refraction index-glass or water?(Delhi - 2011)

Answer 1

Explanation:

Asia hospital of light in medium 1 to lthe speed of light in medium 2it's unit is equal to speed of light in medium 1 by speed of light in medium 2 is equal to v1 by V2

Answer 2

Dear Student,

● Refractive index -

• Refractive index is the ratio of the velocity of light in a vacuum to its velocity in a specified medium. n = c/v

• By Snell's law, n = sini/sinr

• Refractive index of medium 1 wrt medium 2 is represented by n12. i.e. n12 = n1/n2

◆ Unit of refractive index -

• Refractive index is ratio of two similar quantities. Hence, it doesn't have any unit.

● Refractive index of glass & water -

• Refractive index of glass is more than that of water.

Thanks dear. Hope this helps you...