Chapter testPhysicsIncluded in the seriesTest 78 of 134

NEET UG Magnetism, EMI & AC: Electromagnetic Waves – Chapter Test

NEET UG Magnetism, EMI & AC: Electromagnetic Waves – Chapter Test is an online chapter test in the NEET UG pattern, covering Magnetism, EMI & AC. Attempt it on SeatBeat with a timer like the real exam, then see a detailed solution for every question and your score and weak-topic analysis.

20
Questions
20
Minutes
20
Marks
−0.25
Negative marking

Topics in this test

TopicQuestions
Magnetism, EMI & AC20

Difficulty: 7 medium · 13 hard

Electromagnetic Waves MCQ questions with answers

The first 3 of 20 questions. Unlock the series for the rest, each with a solution.

  1. Q1. The speed of electromagnetic waves in free space is expressed as:

    मुक्त आकाश में विद्युतचुंबकीय तरंगों की चाल को व्यक्त किया जाता है:

    • A. c = 1/(μ0ε0)
    • B. c = √(μ0ε0)
    • C. c = μ0ε0
    • D. c = 1/√(μ0ε0)
    Solution

    From Maxwell's equations, the speed of EM waves in vacuum is c = 1/√(μ0ε0), which numerically equals about 3×10^8 m/s.

    मैक्सवेल के समीकरणों से, निर्वात में विद्युतचुंबकीय तरंगों की चाल c = 1/√(μ0ε0) होती है, जो संख्यात्मक रूप से लगभग 3×10^8 m/s के बराबर है।

  2. Q2. Among the following electromagnetic radiations, which one has the highest frequency?

    निम्नलिखित विद्युतचुंबकीय विकिरणों में से किसकी आवृत्ति सर्वाधिक है?

    • A. Gamma rays / गामा किरणें
    • B. X-rays / एक्स-किरणें
    • C. Ultraviolet / पराबैंगनी
    • D. Microwaves / सूक्ष्मतरंगें
    Solution

    Gamma rays have the shortest wavelength and therefore the highest frequency of the listed radiations, followed by X-rays, ultraviolet and then microwaves.

    गामा किरणों की तरंगदैर्घ्य सबसे कम होती है और इसलिए दी गई विकिरणों में इनकी आवृत्ति सर्वाधिक होती है, इसके बाद एक्स-किरणें, पराबैंगनी और फिर सूक्ष्मतरंगें आती हैं।

  3. Q3. The speed of electromagnetic waves in free space is given by c = 1/√(μ0ε0). Using μ0 = 4π×10^-7 T·m·A^-1 and ε0 = 8.85×10^-12 C^2·N^-1·m^-2, the value of c is approximately:

    मुक्त आकाश में विद्युतचुंबकीय तरंगों की चाल c = 1/√(μ0ε0) द्वारा दी जाती है। μ0 = 4π×10^-7 T·m·A^-1 और ε0 = 8.85×10^-12 C^2·N^-1·m^-2 का उपयोग करने पर, c का मान लगभग है:

    • A. 3.0×10^9 m/s
    • B. 9.0×10^16 m/s
    • C. 1.1×10^8 m/s
    • D. 3.0×10^8 m/s
    Solution

    μ0ε0 ≈ 1.11×10^-17, so √(μ0ε0) ≈ 3.33×10^-9 and c = 1/(3.33×10^-9) ≈ 3.0×10^8 m/s, matching the known speed of light.

    μ0ε0 ≈ 1.11×10^-17, इसलिए √(μ0ε0) ≈ 3.33×10^-9 और c = 1/(3.33×10^-9) ≈ 3.0×10^8 m/s, जो प्रकाश की ज्ञात चाल से मेल खाता है।

Frequently asked questions

How many questions are in the NEET UG Magnetism, EMI & AC: Electromagnetic Waves – Chapter Test?

20 questions for 20 marks, to be answered in 20 minutes.

Is there negative marking in the NEET UG Magnetism, EMI & AC: Electromagnetic Waves – Chapter Test?

Yes — 0.25 marks are deducted for each wrong answer, as in the real exam pattern.

Which topics does the NEET UG Magnetism, EMI & AC: Electromagnetic Waves – Chapter Test cover?

Magnetism, EMI & AC (20 questions).

Is the NEET UG Magnetism, EMI & AC: Electromagnetic Waves – Chapter Test free?

It is part of the NEET UG 2027 Mock Test Series (134 tests, ₹299). You can first try Biology in Human Welfare – Topic Test for free.

More tests in the NEET UG 2027 Mock Test Series

See the full NEET UG 2027 Mock Test Series → · NEET UG: pattern, notification & syllabus →

Electromagnetic Waves MCQ Questions with Answers | NEET UG