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A plane electromagnetic wave travels in vacuum along z-directi
Physics Part-I
Physics Part-I

Class 12

NCERT

Publisher:
NCERT
Subject:
Physics
1

Chapter 1: Electric Charges and Fields

47 questions

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2

Chapter 2: Electrostatic Potential and Capacitance

46 questions

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3

Chapter 3: Current Electricity

33 questions

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4

Chapter 4: Moving Charges and Magnetism

41 questions

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5

Chapter 5: Magnetism and Matter

36 questions

arrow
6

Chapter 6: Electromagnetic Induction

28 questions

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7

Chapter 7: Alternating Current

37 questions

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8

Chapter 8: Electromagnetic Waves

20 questions

Q1
What physical quantity is the same for X-rays of wavelength , red light of wavelength 6800 and radiowaves of wavelength 500m?
Q2
A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wavelength?
Q3
A radio can tune in to any station in the 7.5 MHz to 12 MHz band. What is the corresponding wavelength band?
View all question
Question
Easy
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Solving time: 3 mins

A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wavelength?

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Updated on: May 17, 2022

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Physics Part-I (NCERT)

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A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wavelength?
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Text SolutionText solutionverified iconVerified

Wave travel along z-direction.
Electric and magnetic field are in XY plane and perpendicular to each other.
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Practice more questions from Physics Part-I (NCERT)

Q1
What physical quantity is the same for X-rays of wavelength , red light of wavelength 6800 and radiowaves of wavelength 500m?
Q2
A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wavelength?
Q3
A radio can tune in to any station in the 7.5 MHz to 12 MHz band. What is the corresponding wavelength band?
View all

Practice questions from Physics Part-I (NCERT)

Question 1
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What physical quantity is the same for X-rays of wavelength , red light of wavelength 6800 and radiowaves of wavelength 500m?
Topic

Topic:

Electromagnetic Waves

Book

Book:

Physics Part-I (NCERT)

View 4 solutions

Question 2
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Figure shows a capacitor made of two circular plates each of radius 12 cm, and separated by 5.0 cm. The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to 0.15A.
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(b)Obtain the displacement current across the plates.
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Physics Part-I (NCERT)

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Topic:

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Book:

Physics Part-I (NCERT)

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Question 4
Medium
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Suppose that the electric field part of an electromagnetic wave in vacuum is (a) What is the direction of propagation?
(b) What is the wavelength ?
(c) What is the frequency v?
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(e) Write an expression for the magnetic field part of the wave.
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Physics Part-I (NCERT)

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The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to :
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Assertion The propagation of radiowaves is termed as sky wave propagation. Reason All radiowave are called sky waves.
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Question Text
A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wavelength?
Updated OnMay 17, 2022
TopicElectromagnetic Waves
SubjectPhysics
ClassClass 12
Answer TypeText solution:1 Video solution: 6
Upvotes727
Avg. Video Duration7 min