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 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.

Related Questions:

  1. A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
  2. A flywheel rotating about a fixed axis has a kinetic energy of 360 J when
  3. The intensity of magnetisation of a bar magnet is 5×10⁴ Am⁻¹. The magnetic length
  4. The purpose of using heavy water in nuclear reactor is
  5. When an electron beam passes through an electric field they gain kinetic energy.

Topics: Wave Optics (101)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*