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JEE Main 20154 April
Exam
JEE Main
Year
2015
Date
4 April
Subject
Physics
Chapter
Dual Nature of Matter

JEE Main 2015 · 4 April · Physics · Dual Nature of Matter

Match list-I (Fundamental Experiment) with List-II (its conclusion)...

Match list-I (Fundamental Experiment) with List-II (its conclusion) and select the correct option from the choices given below the list:
List-I List-II
A Franck-Hertz Experiment (i) Particle nature of light
B Photo-electric experiment (ii) Discrete energy levels of the atom
C Davison-Germer Experiment (iii) Wave nature of electron
(iv) Structure of atom

Options

  1. AA−(iv);B−(iii);C−(ii)A - \left(iv\right); B - \left(iii\right); C - ( ii )
  2. BA−(i);B−(iv);C−(iii)A - \left(i\right); B - \left(iv\right); C - ( iii )
  3. CA−(ii);B−(iv);C−(iii)A - \left(ii\right); B - \left(iv\right); C - ( iii )
  4. DA−(ii);B−(i);C−(iii)A - \left(ii\right); B - \left(i\right); C - ( iii )

Correct answer

D. A−(ii);B−(i);C−(iii)A - \left(ii\right); B - \left(i\right); C - ( iii )

Step-by-step solution

Frank-Hertz's experiment demonstrated the existence of excited states in mercury atoms helping to confirm the quantum theory which predicted that electrons occupied only discrete quantized energy states. The photo-electric experiment demonstrated that photon is the particle of light, which can transfer momentum and energy due to collision. Davidson-Germer's experiment shows the wave nature of electrons.
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