Question

The difference in energy of radiation emitted (or) absorbed during electronic transition is:

• A. directly proportional to frequency
• B. directly proportional to wavelength.
• C. inversely proportional to frequency.
• D. inversely proportional to velocity of light.

Answer 1

Answer: (A)

directly proportional to frequency

$EnergyE=hv$
$\therefore E=h\frac{c}{\lambda }$
i.e. $E\propto v:E\propto \frac{1}{\lambda },E\propto c$