Question

Ratio of energy of a photon wavelength 200nm to that of 400nm is. a)1/4. b)4. c)1/2. d) 2​

Answer 1

Answer:

option c is ur ans......

Answer 2

Answer:

hey mate here is your answer it is 'c'

Explanation:

E=hv

ratio of energy =h*v/h*v'

v=200x(10)raise to power (-9)m/s

v'= 400x10raise to power (-9) m/s

when we divide v/v'

then we gets 1/2

i hope it will help you plz mark it as brainliest answer