Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

If in a photoelectric experiment, the wavelength of incident radiation is reduced from $6000\: A^{\circ} \: to \: 4000\: A^{\circ}$ , then

(a) Stopping potential will decrease

(b) Stopping potential will increase

(c) KE of emitted electrons will decrease

(d) value of work function will decrease
Can you answer this question?

1 Answer

0 votes
Ans : (b)
$ \phi = \large\frac{hc}{ \lambda} - eV_{\circ} \phi =$ work function of a particular metal will remain constant
If $\lambda$ = incident radiation wavelength is increased,
$ V_{\circ}$ = stopping potential also has to increase to keep $ \phi$ constant.


answered Dec 28, 2013 by thanvigandhi_1
edited Mar 13, 2014 by thanvigandhi_1

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App