Dual Nature Of Radiation And Matter

Physics
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The energy of the most energetic photoelectrons emitted from a metal target depends upon

A
Threshold frequency of the metal
B
Intensity of the incident radiation
C
Photoelectric work function of the metal
D
Wave length of the incident radiation
Hard
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The work function of metal is greater than that for metal . The two metals are illuminated with appropriate radiation of frequency so as to cause photoelectric emission in both metals. If is the threshold frequency and is the maximum kinetic energy of photoelectrons, then

A
for metal is greater than that for metal
B
for metal is less than that for metal
C
for metal is greater than that for metal
D
for metal is less than that for metal
Hard
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Assertion

An electron cannot exist in the nucleus.

Reason

The de Broglie wavelength of an electron is much smaller than the diameter of the nucleus.

Read the above assertion and reason and choose the correct option regarding it.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C
Assertion is correct but Reason is incorrect
D
Assertion is incorrect but Reason is correct
Hard
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