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What will be the energy associated with a blue photon (in
electronvolts, eV), if the frequency of the blue light is 650 THz
(Terahertz (THz); 1 Tera = 1012)? [Hint: Use Planck's equation: E
- hf to calculate the photon energy! h- Planck's constant – 6.63 x
10-34 Js = 4.14 x1015 eVs]
A. 6.5 eV
B. 6.5×10-3 eV
C. 2.7 eV
D. 2.7×10-27eV
E. 2.7x107 eV

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