One requires $11 \ eV$ of energy to dissociate a carbon monoxide molecule into carbon and oxygen atoms. The minimum frequency of the appropriate electromagnetic radiation to achieve the dissociation lies in

Match List-$I$ with List-$II$.

List-$I$	List-$II$
$(a)$ Source of microwave frequency	$(i)$ Radioactive decay of nucleus
$(b)$ Source of infrared frequency	$(ii)$ Magnetron
$(c)$ Source of Gamma Rays	$(iii)$ Inner shell electrons
$(d)$ Source of $X$-rays	$(iv)$ Vibration of atoms and molecules
	$(v)$ $LASER$
	$(vi)$ $RC$ circuit

Choose the correct answer from the options given below:

Given below are some famous numbers associated with electromagnetic radiations in different contexts in physics. State the part of the electromagnetic spectrum to which each belongs.
$(a)$ $21 \; cm$ (wavelength emitted by atomic hydrogen in interstellar space).
$(b)$ $1057 \; MHz$ (frequency of radiation arising from two close energy levels in hydrogen; known as Lamb shift).
$(c)$ $2.7 \; K$ (temperature associated with the isotropic radiation filling all space; thought to be a relic of the 'big-bang' origin of the universe).
$(d)$ $5890 \; \mathring{A} - 5896 \; \mathring{A}$ (double lines of sodium).
$(e)$ $14.4 \; keV$ (energy of a particular transition in $^{57}Fe$ nucleus associated with a famous high-resolution spectroscopic method, Mossbauer spectroscopy).

$Ultraviolet$ radiations are used in $LASIK$ surgery.

What range of the electromagnetic spectrum is considered as visible light?

The magnetic field in a plane electromagnetic wave is given by $B = 2 \times 10^{-7} \sin(0.5 \times 10^3 x + 1.5 \times 10^{11} t)$. This electromagnetic wave is .........