A) \[\text{2 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-15}}}\text{J}\]
B) \[\text{2 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-16}}}\text{J}\]
C) \[\text{2 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-17}}}\text{J}\]
D) \[\text{2 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-18}}}\text{J}\]
Correct Answer: A
Solution :
Energy \[E=\frac{hc}{\lambda }=\frac{6.6\times {{10}^{-34}}\times 3\times {{10}^{8}}}{{{10}^{-10}}}\] \[\approx 2\times {{10}^{-15}}J\]
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