A) \[5.9\times {{10}^{-5}}m\]
B) \[2.99\times {{10}^{-5}}m\]
C) \[3.9\times {{10}^{-5}}m\]
D) none of these
Correct Answer: A
Solution :
Using the relation, \[\omega =\frac{D\lambda }{d}\] Here, \[d=3mm=3\times {{10}^{-3}}m\] \[D=30cm=0.30m\] \[\lambda =5.9\times {{10}^{-7}}m\] or \[\omega =\frac{0.30\times 5.9\times {{10}^{-7}}}{3\times {{10}^{-3}}}=5.9\times {{10}^{-5}}m\]You need to login to perform this action.
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