Question

Q 34/90 A radiation of wavelength 'X' is incident on
metal surface having 620 nm threshold wavelength.
The stopping potential of electron emitted is 4.9 V.
What is the value of X (in nm)?
179.7
315.1
281.3
151​

Answer 1

Answer:

x will be 000000p

Explanation:

sep is an md rha of