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Does it change the energy

Exercise and reference answers

Questions
  1. Answer
    No change
    Question
    Doubling the light intensity
    Choices
    1. No change
    2. Raises it
  2. Answer
    Raises it
    Question
    Raising the light frequency
    Choices
    1. Raises it
    2. No change
  3. Answer
    Raises it
    Question
    Changing the emitter metal
    Choices
    1. Raises it
    2. No change
  4. Answer
    No change
    Question
    Brighter light of the same colour
    Choices
    1. No change
    2. Raises it
  5. Answer
    Raises it
    Question
    Shorter wavelength light
    Choices
    1. Raises it
    2. No change
  6. Answer
    No change
    Question
    More photons per second
    Choices
    1. No change
    2. Raises it
Instructions
Pick the right answer each time. Too many wrong picks and the tower falls.

Explanation

_Source: syllabus Physics Part II, Ch 11 'Dual Nature of Radiation and Matter'_
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