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 (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
- AStatement 1 is true, Statement 2 is true, Statement 2 is the correct explanation of Statement 1.
- BStatement 1 is false, Statement 2 is true.
- CStatement 1 is true, Statement 2 is false.
- 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.