Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 27: Q94PE (page 1000)

At what angle is light inside crown glass completely polarized when reflected from water, as in a fish tank?

Short Answer

Expert verified

The angle is \({41.2^\circ }\).

Step by step solution

01

 Step 1: Definition of polarisation

The term polarised refers to a medium that shows polarisation.

02

Finding the angle

The equation is used to solve this problem \(\tan \left( {{\theta _b}} \right) = \dfrac{{{n_2}}}{{{n_1}}}\) where \({n_1}\) is the index of reflection for air and for water, is the index of redfraction for water is \({n_2}\).

\(\begin{aligned}\tan \left( {{\theta _b}} \right) &= \dfrac{{{n_2}}}{{{n_1}}}\\ &= \dfrac{{1.33}}{{1.52}}\\ &= 0.875\end{aligned}\)

Solving for the angle, we get

\(\begin{aligned}{\theta _b} &= {\tan ^{ - 1}}(1.14)\\ &= {41.2^\circ }\end{aligned}\)

Therefore, the angle is \({41.2^\circ }\)

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

At what angle is the first-order maximum for 450-nm wavelength blue light falling on double slits separated by 0.0500 mm?

A He–Ne laser beam is reflected from the surface of a CD onto a wall. The brightest spot is the reflected beam at an angle equal to the angle of incidence. However, fringes are also observed. If the wall is 1.50 m from the CD, and the first fringe is 0.600 m from the central maximum, what is the spacing of grooves on the CD?

Find the largest wavelength of light falling on double slits separated by 1.20 µm for which there is a first-order maximum. Is this in the visible part of the spectrum?

(a) Show that a 30,000-line-per-centimeter grating will not produce a maximum for visible light. (b) What is the longest wavelength for which it does produce a first-order maximum? (c) What is the greatest number of lines per centimeter a diffraction grating can have and produce a complete second-order spectrum for visible light?

Does Huygens’s principle apply to all types of waves?
See all solutions

Recommended explanations on Physics Textbooks

Linear Momentum

Read Explanation

Physical Quantities And Units

Read Explanation

Measurements

Read Explanation

Rotational Dynamics

Read Explanation

Fluids

Read Explanation

Atoms and Radioactivity

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free