Navigate

A thin film of soap solution (n=1.4) lies on the top of a glass plate (n=1.5).

A thin film of soap solution (n=1.4) lies on the top of a glass plate (n=1.5). When visible light is incident almost normal to the plate, two adjacent reflection maxima are observed at two wavelengths 420 and 630 nm. The minimum thickness of the soap solution is

Options

(a) 420 nm
(b) 450 nm
(c) 630 nm
(d) 1260 nm

Correct Answer:

450 nm

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

VITEEE2008
admin:

Related Questions

  1. Three particles A,B and C are thrown from the top of a tower with the same speed.
  2. The height at which the weight of a body becomes 1/16 th, its weight
  3. A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
  4. A parallel plate capacitor with air between the plates has a capacitance of 9 pF.
  5. The dimensional formula for Young’s modulus is