Question Detail

PHY 104 Photo Electric Emission Objective Question
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Question

What is the key implication of Einstein's suggestion that light consists of discrete units of energy (photons) regarding electron absorption?
Options
A Electrons can absorb any fraction of a photon's energy.
B Electrons must absorb an entire photon or none at all, with no 'in-between'.
Correct Answer
C Electron absorption of light is a continuous process over time.
D Only electrons in specific orbits can absorb photons.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 3 states, 'Einstein suggested that light consisted of discrete units of energy, ΔΕ = hf. Electrons could either get hit with and absorb a whole photon, or they could not. There was no in-between (getting part of a photon).' This is the direct implication.

Hint

Refer to Einstein's explanation of discrete energy units and electron interaction on page 3.

Question Info

Course: PHY 104
Topic: Photo Electric Emission
Type: Objective
Difficulty: Not specified
Question 207 of 947
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