1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
The threshold frequency for a photosensitive metal is 3.3 $$ \times $$ 1014 Hz. If light of frequency 8.2 $$ \times $$ 1014 Hz is incident on this metal, the cut- off voltage for the photoelectron emission is nearly
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Photoelectric emission occurs only when the incident light has more than a certain minimum
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In the Davisson and Germer experiment, the velocity of electrons emitted from the electron gun can be increased by
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