Light of two different frequencies whose photons have energies 1 eV and 2.5 eV respectively, successively illuminates a metal of work function 0.5 eV. The ratio of maximum K.E of the emitted electron will be:
A. 1 : 5
B. 1 : 4
C. 1 : 1
D. 1 : 2
Answer:B
Light of two different frequencies whose photons have energies 1 eV and 2.5 eV respectively, successively illuminates a metal of work function 0.5 eV. The ratio of maximum K.E of the emitted electron will be:
A. 1 : 5 B. 1 : 4 C. 1 : 1 D. 1 : 2