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. The refractive index of water, glass and diamond are 1.33, 1.50, 2.40 respectively
  2. In a mass spectrometer used for measuring the masses of ions, the ions
  3. A slab consists of two parallel layers of two different materials of same thickness
  4. If alternating source of primary coil on transformer is replaced by a Laclanche cell
  5. A tuning fork vibrates with 2 beats in 0.04 second. The frequency of the fork is