Question

In a photoemissive cell with executing wavelength , the fastest electron has speedv. If the exciting wavelength is changed to 3/4, then what will be the speed of the fastest emitted electron ?

(a)v √(3/4) (b)v √(4/3) (c) less thanv √(4/3) (d) greater thanv √(4/3)

Answer 1

Answer:

In a photo-emissive cell with exciting wavelength λ \lambda λ, the fastest electron has speed v v v. If the exciting wavelength is changed ...In a photoemissive cell, with exciting wavelength

, the faster electron has speed v. If the exciting wavelength is changed to

, the speed of the fastest electron will be