A) \[2\times {{10}^{-25}}nm\,\]
B) \[5\times {{10}^{-18}}\,nm\]
C) 4 nm
D) \[3\times {{10}^{-7}}\,nm\]
Correct Answer: C
Solution :
Frequency \[=\frac{C}{\lambda }=\frac{3\times {{10}^{8}}m{{s}^{-1}}}{8\times {{10}^{15}}{{s}^{-1}}}\] \[=0.375\times {{10}^{-7}}m=3.75\,nm\,\approx 4nm\]You need to login to perform this action.
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