Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 23: Q39 P (page 991)

The index of refraction of water is 1.33. At what speed would a wave crest in a beam of light travel through this medium?

Short Answer

Expert verified

The speed of wave in the water is 2.25×108ms.

Step by step solution

01

Identification of given data

The index of the refraction,n=1.33

02

Determine the formulas to calculate the speed of wave in the water.

The expression to calculate the speed of wave in the water is given as follows.

v=cn …(i)

Here, c is the speed of the light.

03

Determining the speed of wave in the water.

Calculate the speed of wave in water.

Substitute 1.33fornand 3×108msforcinto equation (i).

v=3×108m/s 1.33v=2.25×108m/s

Hence the speed of wave in the water is 2.25×108m/s.

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

A positive charge coasts upward at a constant velocity for a long time. Then at t=0(Figure 23.120) a force acts downward on it for 1ns(1×10-9s). After this force stops acting, the charge coasts upward at a smaller constant speed for 1 ns; then a force acts upward for and it resumes its original speed. The new position reached at t=3nsis much less than a millimeter from the original position.

You stand at location A 30m, to the right of the charge (Figure 23.120), with instruments for measuring electric and magnetic fields. What will you observe due to the motion of the positive charge, at what times? You do not need to calculate the magnitudes of the electric and magnetic fields, but you do need to specify their directions, and the times when these fields are observed.

For a particular liquid–air interface the critical angle (fortotal internal reflection) is 59.8°. The index of refraction of air is1.00029.What is the index of refraction of the liquid?

Calculate the wave length for several examples of sinusoidal electromagnetic radiation:

radio,1000kHz,λ=?

television,100MHz,λ=?

red light,4.3×1014Hz,λ=?

blue light,7.5×1014Hz,λ=?

(Note for comparison that an atomic diameter is about 1×10-10m,).

At dawn, with the Sun just rising in the east, you facethe Sun and bend your head back to look straight up, and youexamine the blue sky light with a Polaroid® filter. Why is the lightpolarized? What is the direction of the electric field, east—west ornorth—south? Explain carefully

A small laser used as a pointer produces a beam of red light 5mm in diameter and has a power output of 5mW. What is the magnitude of the electric field in the laser beam?
See all solutions

Recommended explanations on Physics Textbooks

Magnetism

Read Explanation

Space Physics

Read Explanation

Waves Physics

Read Explanation

Astrophysics

Read Explanation

Famous Physicists

Read Explanation

Mechanics and Materials

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