Atomic Structure Question 19

Question: The frequency of an electromagnetic radiation is $ 2\times 10^{6}Hz $ . What is its wavelength in metres (Velocity of light $ =3\times 10^{8}m{s^{-1}} $ )

Options:

A) $ 6.0\times 10^{14} $

B) $ 1.5\times 10^{4} $

C) $ 1.5\times 10^{2} $

D) $ 0.66\times {10^{-2}} $

Show Answer

Answer:

Correct Answer: C

Solution:

When $ c=\nu \times \lambda $ than $ \lambda =\frac{c}{\nu }=\frac{3\times 10^{8}}{2\times 10^{6}}=1.5\times 10^{2}m $



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