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Question: Answered & Verified by Expert
In the following List $A$ consists of wave length range of different of EM waves and List $B$ consists of ways to produce them. Match the following Lists.

PhysicsElectromagnetic WavesJEE Main
Options:
  • A 3 2 1 4
  • B 2 3 4 1
  • C 4 3 2 1
  • D 1 4 3 2
Solution:
1705 Upvotes Verified Answer
The correct answer is: 4 3 2 1
(A) Waves of range $1 \mathrm{~nm}$ to $400 \mathrm{~nm}$ are produced when inner shell electrons in atoms moving from one energy level to a lower level.
(B) The waves of range of wavelength greater the $0.1 \mathrm{~nm}$ is produced when rapid acceleration and deceleration of electrons in aerials takes place.
(C) The waves of wavelength range $1 \mathrm{~nm}$ to $700 \mathrm{~nm}$ are produced by the vibration of atom and molecules in a substance.
(D) The waves of range of wavelength of less than $10^{-3} \mathrm{~nm}$ are produced by the radioactive decay of the nucleus.
The correct match is given by $\mathrm{A} \rightarrow 4, \mathrm{~B} \rightarrow 3, \mathrm{C} \rightarrow 2$ and $\mathrm{D} \rightarrow 1$

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