Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

What is the threshold wavelength for ejection of electron from metal. If work function for the photoelectric emission  is 4.0ev

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya

a

310nm

b

6×10-5cm

c

3.1×10-7cm

d

620nm

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

W=hνo=hCλ0⇒λ0=hCW ⇒λ0=6.6×10-34J×3×108m4×1.6×10-19J=3.1×10-7m=310nm
Watch 3-min video & get full concept clarity

courses

No courses found

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
What is the threshold wavelength for ejection of electron from metal. If work function for the photoelectric emission  is 4.0ev