Q.

Photoelectric emission is observed from a surface for frequencies v1 and v2 of the incident radiation v1>v2. If maximum kinetic energies of the phot electrons in the two eases are in the ratio 1 : K, then the threshold frequency is given by

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

Kv1v2K1

b

Kv2v1K1

c

Kv2v1K

d

v2v1K1

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

It is known that;

KE1=hv1hv0;KE2=hv2hv0KE1KE2=1K=v1v0v2v0v0=Kv1v2K1

Watch 3-min video & get full concept clarity

tricks from toppers of Infinity Learn

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
Photoelectric emission is observed from a surface for frequencies v1 and v2 of the incident radiation v1>v2. If maximum kinetic energies of the phot electrons in the two eases are in the ratio 1 : K, then the threshold frequency is given by