A beam of light is incident from air to water at an angle of 300. Find the angle of refraction if the refractive index of water is 4/3

Assessment: JAMB UTME - Physics - 2018 Subject: Physics

Question 1 Report

A beam of light is incident from air to water at an angle of 300. Find the angle of refraction if the refractive index of water is 4/3

15

^{o}

18

^{o}

22

^{o}

24

^{o}

Answer Details

X =

\frac{4}{3}

r = ?
Shell?s law:. 7 =

\frac{S i n 2^{0}}{S i n r^{0}}

\frac{V}{g}

=

\frac{S i n 30^{0}}{S i n r^{0}}

Sin

r^{0}

=

\frac{3 S i n 30^{0}}{4}

Sin

r^{0}

= 0.375
R

^{o}

= Sin-1 (0.375)
R

^{o}

= 22.02

^{o}

R

^{o}

= 22

^{o}

Read lesson note on Electromagnetic Waves: Types Of Radiation In Electromagnetic Spectrum (WAEC)

Read lesson note on Refraction Of Light Through Plane And Curved Surfaces (JAMB)

Electromagnetic Waves: Types Of Radiation In Electromagnetic Spectrum

Refraction Of Light Through Plane And Curved Surfaces

View Answer

Related Questions

Download The App On Google Playstore

Everything you need to excel in your exams

Green Bridge CBT Mobile App

Personalized AI Learning Chat Assistant

200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO

Over 3,900 Lesson Notes

Offline Support - Learn Anytime, Anywhere

Green Bridge Timetable

Literature Summaries & Potential Questions

Track Your Performance & Progress

In-depth Explanations for Comprehensive Learning