Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Standard XII
Physics
Question

Statement-1: Work function of aluminum is 4.2eV. If two photons each of energy 2.5eV strikes on a piece of aluminum, the photo electric emission does not occur
Statement-2: In photo electric effect a single photon interacts with a single electron and electron is emitted only if energy of each incident photon is greater then the work function.
  1. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for statement-1
  2. Statement-1 is True, Statement-2 is True, Statement-2 is a NOT a correct explanation for statement-1
  3. Statement-1 is True, Statement-2 is False
  4. Statement-1 is False, Statement-2 is True

A
Statement-1 is True, Statement-2 is True, Statement-2 is a NOT a correct explanation for statement-1
B
Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for statement-1
C
Statement-1 is True, Statement-2 is False
D
Statement-1 is False, Statement-2 is True
Open in App
Solution
Verified by Toppr

Was this answer helpful?
0
Similar Questions
Q1
Statement-1: Work function of aluminum is 4.2eV. If two photons each of energy 2.5eV strikes on a piece of aluminum, the photo electric emission does not occur
Statement-2: In photo electric effect a single photon interacts with a single electron and electron is emitted only if energy of each incident photon is greater then the work function.
View Solution
Q2
Statement−1:log10x<logπx<logex<log2x ∀ x>1
Statement−2:x<y⇒logax>logay when 0<a<1
View Solution
Q3
Statement−1: 0<x<y⇒logax>logay, where a>1.
Statement−2: When a>1,logax is an increasing function.
View Solution
Q4
Statement-1: ∑nr=0(r+1)nCr=(n+2)2n−1.
Statement-2: ∑nr=0(r+1)nCrxr=(1+x)n+nx(1+x)n−1.
View Solution
Q5
Statement-1: ∑nr=0(r+1)nCr=(n+2)2n−1.
Statement-2: ∑nr=0(r+1)nCrxr=(1+x)n+nx(1+x)n−1.
View Solution