Question

The correct match between the entries in column I and column II are

$I$ Radiation	$II$ Wavelngth
$\left(A\right)$	Microwave	$\left(i\right)$	$100\text{m}$
$\left(B\right)$	Gamma rays	$\left(ii\right)$	${10}^{-15}\text{m}$
$\left(C\right)$	A.M. radio waves	$\left(iii\right)$	${10}^{-10}\text{m}$
$\left(D\right)$	X-rays	$\left(iv\right)$	${10}^{-3}\text{m}$

• A. $\text{(A)-(ii),(B)-(i),(C)-(iv),(D)-(iii)}$
• B. $\text{(A)-(i),(B)-(iii),(C)-(iv),(D)-(ii)}$
• C. $\text{(A)-(iii),(B)-(ii),(C)-(i),(D)-(iv)}$
• D. $\text{(A)-(iv),(B)-(ii),(C)-(i),(D)-(iii)}$

Answer 1

The correct option is D $\text{(A)-(iv),(B)-(ii),(C)-(i),(D)-(iii)}$

Energy sequence of radiations is

$E_{\gamma \text{-rays}}>E_{\text{X-rays}}>E_{\text{{microwave}}}>E_{\text{AM radiowaves}}$
$\therefore {\lambda }_{\gamma \text{-rays}}<{\lambda }_{\text{X-rays}}<{\lambda }_{\text{{microwave}}}<{\lambda }_{\text{AM radiowaves}}$

From the above sequence, we have

$\left(1\right)$ Microwave $\to {10}^{-3}\text{m}\to \left(iv\right)$
$\left(2\right)$ Gamma Rays $\to {10}^{-15}\text{m}\to \left(ii\right)$
$\left(3\right)$ AM Radio wave $\to 100\text{m}\to \left(i\right)$
$\left(4\right)$ X-rays $\to {10}^{-10}\text{m}\to \left(iii\right)$