Question

the ratio of energy of radiation of wavelength 2000armstrong and that of 4000 Armstrong is.

a) 4:1

b) 1:4

c) 1:2

d) 2:1

Answer 1

the ratio is 1:2...^_^

Answer 2

$E = \frac{hc}{ lamda}$
E1/ E2 = lamda2/lamda1 =

4000/2000

=2

option D .


be brainly