Question

.Find the energy of photons which has frequency 5 X 10^12 Hz.​

Answer 1

E=hv

E=6.6×10^-34×5×10^12

E=33×10^-22 Joules

Answer 2

Answer:

Explanation:

Energy of a photon ; E = hν ; where ν = frequency = 3×10^15 HZ

herefore energy = 6.6×10^-34×3×10^12

 Hz=1.9878×10 ^-21 J

1 mole = 6.02×10^23 photons

Therefore energy of 1 mole of photons = 1.9878×10^-21 ×6.02×10 ^23

        =1197.2 J