A) \[6.135\times {{10}^{-19}}\]
B) \[5.6135\times {{10}^{-29}}\]
C) \[6.100\times {{10}^{-19}}\]
D) \[6.135\times {{10}^{-29}}\]
Correct Answer: D
Solution :
Here,\[\lambda =3.6\overset{\text{o}}{\mathop{\text{A}}}\,=3.6\times {{10}^{-10}}m.\] As photon travels with the velocity of light, \[v=3.0\times {{10}^{8}}m{{s}^{-1}}\] By de-Broglie equation,\[\lambda =\frac{h}{mv}\] or \[m=\frac{h}{\lambda v}=\frac{6.626\times {{10}^{-34}}J\,\,s}{(3.6\times {{10}^{-10}}m)(3.0\times {{10}^{8}}m{{s}^{-1}})}\] \[=6.135\times {{10}^{-29}}kg\]
You need to login to perform this action.
You will be redirected in
3 sec
