A) visible light
B) ultraviolet
C) infrared
D) X-ray
Correct Answer: D
Solution :
As\[E=\frac{hc}{\lambda }\] So, wavelength\[\lambda =\frac{hc}{E}=\frac{6.6\times {{10}^{-34}}\times 3\times {{10}^{8}}}{13.2\times {{10}^{3}}\times 1.6\times {{10}^{-19}}}\] \[=0.9375\times {{10}^{-10}}m\] \[=1\overset{o}{\mathop{\text{A}}}\,\] Wavelength range of X-rays is from\[{{10}^{-11}}\]to \[{{10}^{-8}}\]m (100 A).
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