The frequency of an electromagnetic radiation, Chemistry

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The frequency of an electromagnetic radiation is  2x 106 Hz. . What is its wavelength in metres : (Velocity of light = 3x108 ms-1)

(1)6.0x 1014                       

(2)1.5x 104           

(3)1.5x 102                       

(4)0.66x 10-2

Ans:1.5x 102

 


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