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NEET 2011
Exam
NEET
Year
2011
Subject
Physics
Chapter
Dual Nature of Matter

NEET 2011 · Physics · Dual Nature of Matter

Photoelectric emission occurs only when the incident light has more...

Photoelectric emission occurs only when the incident light has more than a certain minimum

Options

  1. Awavelength
  2. Bintensity
  3. Cfrequency
  4. Dpower

Correct answer

C. frequency

Step-by-step solution

By the concept of threshold minimum frequency needed for photoelectric emission.12mv2=h(v−v0)v≥v0\begin{aligned}\frac{1}{2} m v² & =h \left( v-v_0\right) \\ v & \geq v_0 \end{aligned}
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