The eye can detect as little as 10 -18 J of energy in the form of light.

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The eye can detect as little as 10^-18 J of energy in the form of light. How many photons of frequency 5 × 10¹⁴ Hz does this amount of energy represent?

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The Physical Universe

ISBN: 978-0077862619

16th edition

Authors: Konrad B Krauskopf, Arthur Beiser

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Question Posted: Mar 11, 2020 06:32 AM

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The eye can detect as little as 10 -18 J of energy in the form of light.

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photon energy E nhf number of photon ...View the full answer

The Physical Universe

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