1. Tardigrade
  2. Question
  3. Physics
  4. Match List I (Wavelength range of electromagnetic spectrum) with List II. (Method of production of these waves) and select the correct option from the options given below the lists. List I List II a 700 nm to 1 mm i Vibration of atoms and molecules. b 1 nm to 400 nm ii Inner shell electrons in atoms moving from one energy level to a lower level. c < 10-3 nm iii Radioactive decay of the nucleus. d 1 mm to 0.1 m iv Magnetron valve.

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Q. Match List I (Wavelength range of electromagnetic spectrum) with List II. (Method of production of these waves) and select the correct option from the options given below the lists.

List I List II
a $700\, nm$ to $1\, mm$ i Vibration of atoms and molecules.
b $ 1\, nm$ to $400\, nm$ ii Inner shell electrons in atoms moving from one energy level to a lower level.
c $< 10^{-3} \,nm$ iii Radioactive decay of the nucleus.
d $1\, mm$ to $0.1\, m$ iv Magnetron valve.

JEE MainJEE Main 2014Electromagnetic Waves

Solution:

$E=\frac{hC}{\lambda}=hV\,\lambda=\frac{C}{V}=\frac{10^{8}}{10^{19}}$
$=10^{11}\,m =10^{-2}\,nm$
Magnetron valve generate microwaves.