50+ NEET MCQ Questions Electromagnetic Waves with Solutions

Here we will provide you the 50+ MCQ Questions of Electromagnetic Waves for NEET-UG. Electromagnetic Waves is the chapter 8 in Class XII or Class 12 Physics NCERT Unit Electromagnetic Waves NEET (conducted by NTA) is based on the NCERT book.

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These 50+ MCQ questions are selected by the experts of studyrate.in and these are more difficult questions, which will help you to better understand Electromagnetic Waves NEET MCQ Questions with Answers.

Electromagnetic Waves NEET MCQ


Which of the following is not an electromagnetic wave?
a) Sound wave
b) Radio wave
c) Gamma ray
d) X-ray

Answer: a) Sound wave

What is the frequency of a photon of green light with a wavelength of 500 nm?
a) 6 x 10^14 Hz
b) 5 x 10^14 Hz
c) 4 x 10^14 Hz
d) 3 x 10^14 Hz

Answer: b) 5 x 10^14 Hz

Which of the following statements is true about polarized light?
a) Its electric field oscillates in a random direction.
b) Its electric field oscillates in a fixed plane.
c) Its magnetic field oscillates in a random direction.
d) Its magnetic field oscillates in a fixed plane.

Answer: b) Its electric field oscillates in a fixed plane.

Which of the following is not an application of electromagnetic waves?
a) Microwave oven
b) MRI machine
c) X-ray machine
d) Stethoscope

Answer: d) Stethoscope

In an electromagnetic wave, the electric field and magnetic field are:
a) perpendicular to each other and perpendicular to the direction of propagation.
b) parallel to each other and perpendicular to the direction of propagation.
c) perpendicular to each other and parallel to the direction of propagation.
d) parallel to each other and parallel to the direction of propagation.

Answer: a) perpendicular to each other and perpendicular to the direction of propagation.


Which of the following statements is true about the speed of light in a vacuum?
a) It is constant and independent of the frequency of the electromagnetic wave.
b) It is constant and proportional to the frequency of the electromagnetic wave.
c) It varies with the frequency of the electromagnetic wave.
d) It varies with the amplitude of the electromagnetic wave.

Answer: a) It is constant and independent of the frequency of the electromagnetic wave.

Which of the following electromagnetic waves has the highest frequency?
a) Radio waves
b) Microwaves
c) Ultraviolet light
d) X-rays

Answer: d) X-rays

Which of the following statements is true about the intensity of an electromagnetic wave?
a) It is proportional to the amplitude of the wave.
b) It is proportional to the square of the amplitude of the wave.
c) It is proportional to the frequency of the wave.
d) It is proportional to the wavelength of the wave.

Answer: b) It is proportional to the square of the amplitude of the wave.

Which of the following phenomena is not related to the wave nature of electromagnetic radiation?
a) Interference
b) Diffraction
c) Polarization
d) Photoelectric effect

Answer: d) Photoelectric effect

Which of the following statements is true about the electromagnetic spectrum?
a) The wavelength increases as we move from ultraviolet to infrared radiation.
b) The frequency decreases as we move from radio waves to gamma rays.
c) The speed of light decreases as we move from radio waves to gamma rays.
d) The energy of the photons increases as we move from radio waves to gamma rays.

Answer: d) The energy of the photons increases as we move from radio waves to gamma rays.


Which of the following is not a property of electromagnetic waves?
a) Polarization
b) Refraction
c) Dispersion
d) Resistance

Answer: d) Resistance

What is the wavelength of a photon of blue light with a frequency of 6 x 10^14 Hz?
a) 2.5 x 10^-7 m
b) 5 x 10^-7 m
c) 7.5 x 10^-7 m
d) 1 x 10^-6 m

Answer: b) 5 x 10^-7 m

Which of the following statements is true about the photoelectric effect?
a) It can only be explained by the wave nature of light.
b) It can only be explained by the particle nature of light.
c) It can be explained by both the wave and particle nature of light.
d) It cannot be explained by either the wave or particle nature of light.

Answer: b) It can only be explained by the particle nature of light.

Which of the following electromagnetic waves has the longest wavelength?
a) Radio waves
b) Infrared radiation
c) Ultraviolet light
d) X-rays

Answer: a) Radio waves

Which of the following statements is true about the electric and magnetic fields of an electromagnetic wave?
a) They are in phase with each other.
b) They are out of phase with each other.
c) They are perpendicular to each other but not perpendicular to the direction of propagation.
d) They are both parallel to the direction of propagation.

Answer: c) They are perpendicular to each other but not perpendicular to the direction of propagation.


Which of the following statements is true about the energy of an electromagnetic wave?
a) It is directly proportional to the amplitude of the wave.
b) It is directly proportional to the frequency of the wave.
c) It is inversely proportional to the wavelength of the wave.
d) It is directly proportional to the speed of the wave.

Answer: b) It is directly proportional to the frequency of the wave.

Which of the following electromagnetic waves is used in optical fiber communication?
a) Radio waves
b) Microwaves
c) Infrared radiation
d) X-rays

Answer: c) Infrared radiation

Which of the following statements is true about the refractive index of a material?
a) It is independent of the wavelength of the incident light.
b) It is directly proportional to the speed of light in the material.
c) It is inversely proportional to the speed of light in the material.
d) It is dependent on the frequency of the incident light.

Answer: d) It is dependent on the frequency of the incident light.

Which of the following electromagnetic waves is used in medical imaging?
a) Radio waves
b) Microwaves
c) Ultraviolet light
d) X-rays

Answer: d) X-rays

Which of the following statements is true about the diffraction of electromagnetic waves?
a) It is more pronounced for waves with longer wavelengths.
b) It is more pronounced for waves with shorter wavelengths.
c) It is independent of the wavelength of the wave.
d) It is only observed in the presence of a medium.

Answer: a) It is more pronounced for waves with longer wavelengths.


What is the unit of frequency of electromagnetic waves?
a) Hertz (Hz)
b) Joule (J)
c) Newton (N)
d) Watt (W)

Answer: a) Hertz (Hz)

Which of the following statements is true about the speed of electromagnetic waves in a vacuum?
a) It is inversely proportional to the wavelength of the wave.
b) It is directly proportional to the frequency of the wave.
c) It is independent of the frequency and wavelength of the wave.
d) It varies with the temperature of the medium.

Answer: c) It is independent of the frequency and wavelength of the wave.

Which of the following electromagnetic waves is used in remote sensing?
a) Radio waves
b) Microwaves
c) Visible light
d) Ultraviolet light

Answer: b) Microwaves

Which of the following statements is true about the polarization of electromagnetic waves?
a) It is independent of the direction of propagation of the wave.
b) It is independent of the frequency of the wave.
c) It can be changed by reflection of the wave.
d) It can be changed by refraction of the wave.

Answer: c) It can be changed by reflection of the wave.

Which of the following electromagnetic waves has the shortest wavelength?
a) Radio waves
b) Infrared radiation
c) Ultraviolet light
d) X-rays

Answer: d) X-rays

Which of the following statements is true about the electromagnetic spectrum?
a) The energy of the photons decreases as we move from radio waves to gamma rays.
b) The frequency increases as we move from radio waves to gamma rays.
c) The wavelength increases as we move from radio waves to gamma rays.
d) The speed of light decreases as we move from radio waves to gamma rays.

Answer: b) The frequency increases as we move from radio waves to gamma rays.

Which of the following electromagnetic waves is used in radar?
a) Radio waves
b) Microwaves
c) Visible light
d) Ultraviolet light

Answer: b) Microwaves

Which of the following statements is true about the diffraction grating?
a) It can be used to polarize electromagnetic waves.
b) It consists of a series of parallel wires or slits.
c) It produces interference patterns with both constructive and destructive interference.
d) It can only be used with monochromatic light.

Answer: c) It produces interference patterns with both constructive and destructive interference.

Which of the following electromagnetic waves has the highest energy?
a) Radio waves
b) Microwaves
c) Ultraviolet light
d) X-rays

Answer: d) X-rays

Which of the following statements is true about the reflection of electromagnetic waves?
a) It does not depend on the angle of incidence of the wave.
b) It is independent of the polarization of the wave.
c) It can be used to change the frequency of the wave.
d) It can be used to change the direction of propagation of the wave.

Answer: b) It is independent of the polarization of the wave.

We hope there NEET MCQ of Class 12 Electromagnetic Waves will help you to score an excellent rank in NEET-UG. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.

Sneha

Master's in Biology, Skilled in vocational training. Strong Analytical and creative knowledge.

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