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JEE Main 201219 MayOnline
Exam
JEE Main
Year
2012
Date
19 May
Mode
Online
Subject
Physics
Chapter
Dual Nature of Matter

JEE Main 2012 · 19 May · Online · Physics · Dual Nature of Matter

This question has Statement 1 and Statement 2. Of the four choices...

This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement 1: A metallic surface is irradiated by a monochromatic light of frequency v>v0v>v_0 (the threshold frequency). If the incident frequency is now doubled, the photocurrent and the maximum kinetic energy are also doubled. Statement 2: The maximum kinetic energy of photoelectrons emitted from a surface is linearly dependent on the frequency of the incident light. The photocurrent depends only on the intensity of the incident light.

Options

  1. AStatement 1 is true, Statement 2 is true, Statement 2 is the correct explanation of Statement 1.
  2. BStatement 1 is false, Statement 2 is true.
  3. CStatement 1 is true, Statement 2 is false.
  4. DStatement 1 is true, Statement 2 is true, Statement 2 is not the correct explanation of Statement 1.

Correct answer

B. Statement 1 is false, Statement 2 is true.

Step-by-step solution

The maximum kinetic energy of photoelectrons depends upon frequency on incident light and photo current depends upon intensity of incident light.
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