Two electromagnetic radiations have wave numbers in the ratio `2 : 3`. Their energies per quanta will be in the ratio :
Two electromagnetic radiations have wave numbers in the ratio `2 : 3`. Their energies per quanta will be in the ratio :
A. `3 : 2`
B. `9 : 4`
C. `4 : 9`
D. `2 : 3`
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Correct Answer - D
`(E_(1))/(E_(2))=upsilon_(1)/(upsilon_(2))=(vec(upsilon_(1)))/(vec(upsilon_(2)))=(2)/(3)`
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