Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Electromagnetic Waves question

2023 · 1 Feb · Shift 1 · Q58
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electromagnetic Waves
  5. /2023 · 1 Feb · Shift 1 · Q58

Electromagnetic Waves question

2023 · 1 Feb · Shift 1 · Q58

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1

Match List I with List II :

List I List II
A. Microwaves I. Radio active decay of the nucleus
B. Gamma rays II. Rapid acceleration and deceleration of electron in aerials
C. Radio waves III. Inner shell electrons
D. X-rays IV. Klystron valve

Choose the correct answer from the options given below :

  1. A
    A-I, B-III, C-IV, D-II
  2. B
    A-IV, B-III, C-II, D-I
  3. C
    A-IV, B-I, C-II, D-III
  4. D
    A-I, B-II, C-III, D-IV
View written solutionFree

Correct answer: C

  1. We match each electromagnetic wave with its common source.

  2. A. Microwaves

    • Microwaves are produced using devices like a klystron valve.
    • So, A→IVA \to IVA→IV

  3. B. Gamma rays

    • Gamma rays are emitted during radioactive decay of the nucleus.
    • So, B→IB \to IB→I

  4. C. Radio waves

    • Radio waves are produced by rapid acceleration and deceleration of electrons in aerials.
    • So, C→IIC \to IIC→II

  5. D. X-rays

    • X-rays are associated with inner shell electrons; they are produced when inner-shell electronic transitions occur or when high-speed electrons strike a target.
    • So, D→IIID \to IIID→III

  6. Therefore, the correct matching is: A−IV,  B−I,  C−II,  D−IIIA-IV,\; B-I,\; C-II,\; D-IIIA−IV,B−I,C−II,D−III

  7. Checking options:

    • Option A: incorrect
    • Option B: incorrect
    • Option C: correct
    • Option D: incorrect

Hence, the correct answer is Option C.

PreviousNext

More from Electromagnetic Waves

  • The ratio of average electric energy density and total average energy density of electromagnetic wave is :2023 · MCQ
  • For the plane electromagnetic wave given by E=E0​sin(ωt−kx) and B=B0​sin(ωt−kx), the ratio of average electric energy density to average magnetic energy density is2023 · MCQ
  • The energy density associated with electric field E and magnetic field B of an electromagnetic wave in free space is given by (ϵ0​− permittivity of free space, μ0​− permeability of free space)2023 · MCQ
  • The energy of an electromagnetic wave contained in a small volume oscillates with2023 · MCQ
  • The amplitude of magnetic field in an electromagnetic wave propagating along y-axis is 6.0×10−7 T. The maximum value of electric field in the electromagnetic wave is2023 · MCQ
  • The electric field in an electromagnetic wave is given as E=20sinω(t−cx​)j​NC−1 where ω and c are angular frequency…2023 · MCQ
  • A plane electromagnetic wave of frequency 20 MHz propagates in free space along x-direction. At a particular space and time, E=6.6j^​ V/m. What is B…2023 · MCQ
  • Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : EM waves used for optical communication have longer wavelengths than that of microwave, employed in…2023 · MCQ