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An electron jumps from an outer orbit to...

An electron jumps from an outer orbit to an inner orbit with an energy difference of 3.0 eV. What will be the wavelength of the photon emitted?

A

3660Å

B

3620Å

C

4140Å

D

4560Å

Text Solution

Verified by Experts

The correct Answer is:
C
Use `E=hc/lambda` or `E(ev)=12420/(lambda(Å))`
`implies lambda Å = 12420/3 =4140 Å`
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