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Dual Nature Of Radiation And Matter

Physics
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Assertion

As work function of a material increase by some mechanism, it requires greater energy to excite the electrons from its surface.

Reason

A plot of stopping potential versus frequency for different metals, has greater slope for metals with greater work functions.

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
Both Assertion and Reason are incorrect
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Assertion

The de Broglie equation has significance for any microscopic or sub-microscopic particles.

Reason

The de Broglie wavelength is inversely proportional to the mass of the object if velocity is constant.

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
Both Assertion and Reason are incorrect
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