MCQ
An electromagnetic wave of wavelength '`lambda`' is incident on a photosensitive surface of negligible work function. If the photoelectrons emitted from this surface have the de-Broglie wavelength '`lambda_1`' then ____________.
- A`lambda prop 1/lambda_1`
- B`lambda prop 1/lambda_1^2`
- ✓`lambda prop lambda_1^2`
- D`lambda prop lambda_1`