Match the List-I with List-II. Choose the cor | vedclass

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(C) Radio waves are produced by the rapid acceleration and deceleration of electrons in aerials.Microwaves are produced by special vacuum tubes like k

Vedclass · Accepted Answer

$A - IV, B - I, C - II, D - III$

Vedclass · Answer

(C) Radio waves are produced by the rapid acceleration and deceleration of electrons in aerials.Microwaves are produced by special vacuum tubes like klystrons, magnetrons, and Gunn diodes.Infrared waves are produced by hot bodies and molecules due to changes in their vibrational and rotational modes.$X$-rays are produced when high-energy electrons are suddenly stopped or when inner-shell electrons transition from a higher energy level to a lower energy level.Therefore, the correct matching is: $A - IV, B - I, C - II, D - III$.

List-$I$	List-$II$
$A.$ Radio-wave	$I.$ Produced by Magnetron valve
$B.$ Micro-wave	$II.$ Due to change in the vibrational modes of atoms
$C.$ Infrared-wave	$III.$ Due to inner shell electrons moving from higher energy level to lower energy level
$D.$ $X$-ray	$IV.$ Due to rapid acceleration of electrons

List-$I$ (Electromagnetic waves)	List-$II$ (Use)
$(a)$ $UV$ rays	$(i)$ Diagnostic tool in medicine
$(b)$ $X-$rays	$(ii)$ Water purification
$(c)$ Microwave	$(iii)$ Communication,Radar
$(d)$ Infrared wave	$(iv)$ Improving visibility in foggy days

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