A) \[0.8268\times {{10}^{-34}}kg\]
B) \[1.2876\times {{10}^{-33}}kg\]
C) \[1.4285\times {{10}^{-32}}kg\]
D) \[1.8884\times {{10}^{-32}}kg\]
Correct Answer: C
Solution :
We know that \[\lambda =\frac{h}{mv}\] ; \[\therefore \] \[m=\frac{h}{m\lambda }\] The velocity of photon (v) = \[3\times {{10}^{8}}m{{\sec }^{-1}}\] \[\lambda =1.54\times {{10}^{-8}}cm=1.54\times {{10}^{-10}}meter\] \[\therefore \]\[m=\frac{6.626\times {{10}^{-34}}Js}{1.54\times {{10}^{-10}}m\times 3\times {{10}^{8}}m\,{{\sec }^{-1}}}\] \[=\,1.4285\times {{10}^{-32}}kg\].
You need to login to perform this action.
You will be redirected in
3 sec
