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Electromagnetic Waves Practice Questions

NEET · Physics · 1488 free MCQs with instant results and detailed explanations.

1488
Total
329
Easy
665
Medium
494
Hard

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Topics in Electromagnetic Waves

Displacement Current 476
EM Spectrum 525
Properties of EM Waves 487

Sample Questions from Electromagnetic Waves

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Q1
Easy
Which type of electromagnetic wave has the longest wavelength?
A. Radio waves
B. Microwaves
C. Visible light
D. X-rays
Show Answer & Explanation
Correct Answer: A
Radio waves have the longest wavelength in the electromagnetic spectrum, typically ranging from one millimeter to several kilometers.
Q2
Easy
Which part of the electromagnetic spectrum can be detected by the human eye?
A. Ultraviolet
B. Infrared
C. Visible light
D. Microwaves
Show Answer & Explanation
Correct Answer: C
The human eye is sensitive to visible light, which is the range of wavelengths from approximately 400 nm to 700 nm.
Q3
Easy
What is the frequency range of microwaves in the electromagnetic spectrum?
A. 10^3 to 10^9 Hz
B. 10^6 to 10^12 Hz
C. 10^12 to 10^16 Hz
D. 10^15 to 10^19 Hz
Show Answer & Explanation
Correct Answer: B
Microwaves have a frequency range from approximately 1 GHz (10^9 Hz) to 300 GHz (10^12 Hz).
Q4
Medium
Which type of electromagnetic wave has the longest wavelength?
A. Radio waves
B. Microwaves
C. Infrared waves
D. Ultraviolet waves
Show Answer & Explanation
Correct Answer: A
Radio waves have the longest wavelengths compared to microwaves, infrared, and ultraviolet waves, which have progressively shorter wavelengths.
Q5
Medium
Which electromagnetic wave is commonly used in medical imaging?
A. Radio waves
B. Microwaves
C. X-rays
D. Gamma rays
Show Answer & Explanation
Correct Answer: C
X-rays are widely used in medical imaging due to their ability to penetrate soft tissues while being absorbed by denser materials like bones.
Q6
Medium
Which of the following has the highest frequency?
A. Infrared radiation
B. Visible light
C. Ultraviolet radiation
D. Microwaves
Show Answer & Explanation
Correct Answer: C
Ultraviolet radiation has a higher frequency than infrared, visible light, and microwaves, placing it closer to the X-ray region of the spectrum.
Q7
Medium
Which electromagnetic wave is primarily responsible for causing sunburn?
A. Visible light
B. X-rays
C. Ultraviolet rays
D. Infrared rays
Show Answer & Explanation
Correct Answer: C
Ultraviolet rays from the sun are responsible for skin damage and sunburn as they can penetrate the skin and affect living cells.
Q8
Hard
What is the range of wavelengths for infrared radiation in the electromagnetic spectrum?
A. 1 nm to 1 mm
B. 700 nm to 1 mm
C. 10 nm to 700 nm
D. 1 mm to 1 m
Show Answer & Explanation
Correct Answer: B
Infrared radiation is typically defined to have wavelengths from about 700 nm (just beyond the visible spectrum) to 1 mm.
Q9
Hard
Which of the following electromagnetic waves has the highest frequency?
A. Radio Waves
B. Microwaves
C. X-Rays
D. Ultraviolet Waves
Show Answer & Explanation
Correct Answer: C
X-rays have a higher frequency compared to radio waves, microwaves, and ultraviolet waves, making them the highest frequency waves among the given options.
Q10
Hard
Which type of electromagnetic radiation is primarily used in medical imaging?
A. Ultraviolet
B. Infrared
C. X-Rays
D. Microwaves
Show Answer & Explanation
Correct Answer: C
X-rays are the type of electromagnetic radiation primarily used in medical imaging due to their ability to penetrate soft tissues.

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Electromagnetic Waves — NEET Physics Practice Questions Online

This page contains 1488 practice MCQs for the chapter Electromagnetic Waves in NEET Physics. The questions are organized by difficulty — 329 easy, 665 medium, 494 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.