Question

Wavelength of light used in an optical instrument are λ1 = 4000 and λ2 = 5000 , then ratio of their respective resolving powers (corresponding to λ1 and λ2 ) is

(a) 16 : 25

(b) 9 : 1

(c) 4 : 5

(d) 5 : 4.

Answer 1

Correct Option (d) 5 : 4.

Explanation:

Resolving power of an optical instrument is