What Is the Photon Energy of Red Light Having a Wavelength

question 127

Multiple Choice

What is the photon energy of red light having a wavelength of $6.40 \times 10 ^ { 2 } \mathrm {~nm} ? \left( c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } , h \right.$ $= 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s }$ )

• A) \(3.11 \times 10 ^ { - 19 } \mathrm {~J}\)
• B) \(1.94 \times 10 ^ { - 19 } \mathrm {~J}\)
• C) \(1.13 \times 10 ^ { - 19 } \mathrm {~J}\)
• D) \(1.31 \times 10 ^ { - 19 } \mathrm {~J}\)

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Definitions:

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Reduced Anxiety

A state or condition in which feelings of worry, nervousness, or unease are diminished or less intense.

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The phenomenon where an individual's expectations about the effects of alcohol influence their perception of their own intoxication levels.

Beverage Marketers

Professionals involved in promoting and selling drinks, including soft drinks, alcoholic beverages, and other consumable liquids.