Join Sarthaks eConnect Today - Largest Online Education Community!
0 votes
asked in Physics by (71.6k points)

The electric field of light wave is given as vector  E = 10-3 cos (2πx/5 x 10-7 -2π x 6 x 1014 t) x N/C.  This light falls on a metal plate of work function 2eV. The stopping potential of the photo-electrons is : Given E (in eV) = 12375/ λ(in Å).

(1)  0.72 V (2)  2.0 V (3)  0.48 V (4)  2.48 V

1 Answer

+1 vote
answered by (67.7k points)
selected by
Best answer

Correct option (3) 0.48 V 


Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

One Thought Forever

“There is a close connection between getting up in the world and getting up in the morning.“
– Anon