When two monochromatic lights of frequency, \(\nu\) and \(\frac{\nu}{2}\) are incident on a photoelectric metal, their stopping potential becomes \(\frac{V_{s}}{2}\) and \(V_s\), respectively. The threshold frequency for this metal is:
1.
\(\frac{3}{2} \nu\)
2.
\(2\nu\)
3.
\(3\nu\)
4.
\(\frac{2}{3} \nu\)
Subtopic: Â Einstein's Photoelectric Equation |
 69%
From NCERT
NEET - 2022
Other Reason
Add Note
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Don't halt your daily learning journey !!!
Go Premium and unlock limitless education potential beyond daily practice limits!
The light rays having photons of energy \(4.2~\text{eV}\) are falling on a metal surface having a work function of \(2.2~\text{eV}.\)The stopping potential of the surface is:
1.
\(2~\text{eV}\)
2.
\(2~\text{V}\)
3.
\(1.1~\text{V}\)
4.
\(6.4~\text{V}\)
Subtopic: Â Einstein's Photoelectric Equation |
 64%
From NCERT
NEET - 2022
Other Reason
Add Note
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Don't halt your daily learning journey !!!
Go Premium and unlock limitless education potential beyond daily practice limits!
The threshold frequency of a photoelectric metal is \(\nu_0.\) If the light of frequency \(4\nu_0\) is incident on this metal, then the maximum kinetic energy of emitted electrons will be:
1.
\(h\nu_0\)
2.
\(2h\nu_0\)
3.
\(3h\nu_0\)
4.
\(4h\nu_0\)
Subtopic: Â Einstein's Photoelectric Equation |
 83%
From NCERT
NEET - 2022
Other Reason
Add Note
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Don't halt your daily learning journey !!!
Go Premium and unlock limitless education potential beyond daily practice limits!