Question

5) Energy of an EMR of wavelength 550nm is
(a.) 1.6565x10-19 J
O (b.) 2.4847x10-19 J
(c.) 4.4195x10-19 J
O (d.) 3.6141x10-19 J​

Answer 1

Answer:

what do u mean by that

Answer 2

Answer:

d

Explanation:

by using energy formula

E=hf= hc/λ ............................eq (1)

so λ= 550nm = 550× 10^-9 m

c( speed of light) = 3×10^8 m/s

h= 6.63×10^-34 (Js) Joule second

by putting this into eq (1)

we get

E = 3.6141x10-19 J