Question: Chosse the correct option relating wavelengths of different parts of electromagnetic wave spectrum:
(1) $\lambda_{\text {visible }}<\lambda_{\text {micro waves }}<\lambda_{\text {radio waves }}<\lambda_{x \text {-rays }}$
(2) $\lambda_{\text {radio waves }}>\lambda_{\text {micro waves }}>\lambda_{\text {visible }}>\lambda_{x \text {-rays }}$
(3) $\lambda_{x \text {-rays }}<\lambda_{\text {micro waves }}<\lambda_{\text {radio waves }}<\lambda_{\text {visible }}$
(4) $\lambda_{\text {visible }}>\lambda_{x \text {-rays }}>\lambda_{\text {radio waves }}>\lambda_{\text {micro waves }}$
Correct Option: , 2
Solution:
(2) The orderly arrangement of different parts of EM wave
in decreasing order of wavelength is as follows:
$\lambda_{\text {radiowaves }}>\lambda_{\text {microwaves }}>\lambda_{\text {visible }}>\lambda_{\text {X-rays }}$
