AP EAMCET Engineering 21 Sep 2020 Shift 1 Paper

Section: Physics

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Question : 91 of 160

Marks: +1, -0

If the wavelength of a photon is 4000 Å, then its energy will be _______

4.95×10−19 J
5.95×10−19 J
3.95×10−19 J
6.95×10−19 J

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