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Q12: Which of the following is not a
Q19: If sunlight were green instead of white,
Q24: When the frequency of light matches the
Q47: A photosensitive surface is illuminated with both
Q47: Metal detectors, like the ones used at
Q53: The direction of an electric field is
Q56: The brightest color emitted by the sun
Q57: The mass of a nucleon is greatest
Q80: If a light signal and a radio
Q83: If all the uranium in the world