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KCET 2025
MCQ (Single Correct Answer)
+1
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If we consider an electron and a photon of same de-Broglie wavelength, then they will have same
2
KCET 2025
MCQ (Single Correct Answer)
+1
-0
The anode voltage of a photocell is kept fixed. The frequency of the light falling on the cathode is gradually increased. Then the correct graph which shows the variation of photo current I with the frequency $v$ of incident light is
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B
C
D
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0
Light of energy $E$ falls normally on a metal of work function $\frac{E}{3}$. The kinetic energies $K$ of the photo electrons are
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0
The photoelectric work function for photo metal is 2.4 eV . Among the four wavelengths, the wavelength of light for which photoemission does not take place is
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