Determine the wavelength of the light, Chemistry

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If change in energy (ΔE) = 3x 10 -8 j, h= 6.64x 10 -34 j-s  and c= 3x 10 8 m/s  then wavelength of the light is:

(1) 6.36x 10 3Å                

(2) 6.36x 10 5 Å 

(3) 6.64x 10-8Å                                

(4) 6.36x 1018Å 

Ans:  6.36x 10 5Å

 


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