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 N14 Lies On The Physics QuestionA Thin Film Of Soap Solution N14 Lies On The Physics Question

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.

AddThis Website Tools
VITEEE2008
admin:

Related Questions

  1. In photoelectric emission process from a metal of work function
  2. The horizontal range of a projectile is 4√3 times the maximum height achieved
  3. An insulated container of gas has two champers seperated by an insulating partition.
  4. In an LCR series A.C circuit, the voltage across each of the components, L, C and R is 50V
  5. Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.