Question

The refractive index of glass with respect to air is 1.6. The refractive index of air w.r.t glass is:

• A. less than 1
• B. 1
• C. between 1 and 1.5
• D. more than 1.2

Answer 1

Answer: (A)

less than 1

Answer 2

$\,^a n_g=I/\,^g n_a$