Assertion : As work function of a material increases by some mechanism

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Assertion : As work function of a material increases by some mechanism, it requires greater energy to excite the electrons from its surface. Reason : A plot of stopping potential (Vs) versus frequency (υ) for different metals, has greater slope for metals with greater work functions.
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Nov
Assertion : As work function of a material increases by some mechanism, it requires greater energy to excite the electrons from its surface. Reason : A plot of stopping potential (Vs) versus frequency (υ) for different metals, has greater slope for metals with greater work functions. Assertion : As work function of a material increases [...]
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