WorksheetsIMA
Total questions: 14
Worksheet time: 7mins
Electromagnetic waves are produced by
A static charge
An accelerated charge
A moving charge
Charged particles
Which of the following rays are not electromagnetic waves?
Gamma rays
Beta rays
Heat rays
X rays
Which property of an electromagnetic wave, depends on the medium in which it is travelling?
Velocity
Time period
Frequency
Amplitude
Electromagnetic waves are represented in which of the following format?
Longitudinal waved
Transverse waves
Sinusoidal waves
Surface waves
Which of the following are false for electromagnetic waves
Transverse waves
Surface waves
Longitudinal waves
Produced by accelerating charges
Which of the following electromagnetic radiation is used for viewing objects through fog
X rays
Light waves
Gamma rays
Infrared
During the propagation of electromagnetic waves in a medium:
electric energy density is double of the magnetic energy density
electric energy density is half of the magnetic energy density
electrical energy is equal to the magnetic energy density
both electric and magnetic energy densities are zero
The electric and magnetic fields of an electromagnetic wave are
In phase and perpendicular to each other
out of phase and not perpendicular to each other
in phase and not perpendicular to each other
out of phase and perpendicular to each other
Which of the following statement is false for the properties of electromagnetic waves?
Both electric and magnetic field vectors attain the maxima and minima at the same place and same time.
The energy in electromagnetic waves is divided equally between electric and magnetic field vectors.
Both electric and magnetic field vectors are parallel to each other and perpendicular to the direction of propagation of wave.
These waves do not require any material medium for propagation.
Which of the following has/have zero average value in a plane electromagnetic wave?
Both magnetic and electric fields
Electric field only
Magnetic field
None of these
Which of the following electromagnetic waves is used in medicine to destroy cancer cells?
IR-rays
Visible rays
Gamma rays
UV rays
The source of electromagnetic waves can be a charge
moving with a constant velocity.
Moving in a circular orbit
At rest
Falling in the magnetic field
Expand EMR
Electrical Measure Radiator
Electro Magnetic Radiation
Electro Magnetic Radiator
Electro Magnetic Radio
What is the value for the velocity of the speed of light in EM wave
3*10^8 m/s
3.08*10^8 Hz
3*10^8Hz
Both option b and c
