Question

The energy of photon of light having frequency of 3 10's is A 1.99 x 10 B 1.99 x 10-17 с 1.99 x 10 'Tergs D 1.99 x 10 ergs​

Answer 1

Answer:

Answer

If frequency =3×10

5

Hz

E=hv

=6.626×10

−34

J/s−1×3×10

5

=19.878×10

−29

J

if λ=0.5×10

−10

we know c=λv

v=3×10

8

/0.5×10

−10

=6×10

18

E=hv