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NEET
Exam
NEET
Subject
Physics
Chapter
Dual Nature of Matter

NEET · Physics · Dual Nature of Matter

The variation of stopping potential for metals A, B, C and D with...

The variation of stopping potential for metals A, B, CC and D with frequency of incident radiation is as shown in the figure. For which metal, stopping potential is higher for lower values of threshold frequency (vo)\left(v_{o}\right) ? [The frequency of incident radiation, ' v′v^{\prime} is same.] The variation of stopping potential for metals A, B, C and D with frequency of incident radiation is as shown in the

Options

  1. AC
  2. BD\mathrm{D}
  3. CA\mathrm{A}
  4. DB

Correct answer

C. A\mathrm{A}

Step-by-step solution

(B) The electrons will have greater kinetic energy for the metal which have smaller threshold frequency (and hence work function). Hence stopping potential will be higher for them. Hence metal A will have higher stopping potential.
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