Planck’s Quantum Theory

Author:Embibe Experts
AP EAPCET
IMPORTANT

Important Questions on Planck’s Quantum Theory

MEDIUM
IMPORTANT

If the energies of two light radiations E1 and E2 are 25eV and 100eV respectively, then their respective wavelengths λ1 and λ2 would be in the ratio λ1:λ2=

EASY
IMPORTANT

If the work function for the photoelectron emission of a metal is 3.75eV, then the threshold wave length of the radiation needed for the ejection of the electron is approximately