The energy of light is 2.1 × 10⁻²³ J if its frequency is 3.2 × 10¹⁰ s⁻¹.

Name: The energy of light is 2.1 × 10 −23 J if its frequency is 3.2 × 10 10 s −1 .
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Quizplus · Accepted Answer

The energy of light is given by E = hf, where h is Planck's constant and f is the frequency of light. In this case, E = 2.1 × 10⁻²³ J and f = 3.2 × 10¹⁰ s⁻¹. Substituting these values into the equation, we get h = 6.56 × 10⁻³⁴ J s. This is the correct value of Planck's constant, so the statement is true.

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