Question

please answer this question quickly

Answer 1

Option A is correct
bcoz change in energy is given as

deltaE=2.18×10^-18[1/n1^2-1/n2^2]
=2.18×10^-18×[1/2^2-1/3^2]
=3×10^-18 J
(b). we know that
f=c/wavelength
f=3×10^8/580×10^-9
f=5.172×10^14 Hz
wave number=1/wavelength
=1/580×10^-9
=1.72×10^6/m

Answer 2

Answer:

Option A is correct

bcoz change in energy is given as

(b). we know that

f=c/wavelength

f=3×10^8/580×10^-9

f=5.172×10^14 Hz

wave number=1/wavelength

=1/580×10^-9

=1.72×10^6/m