An Ultraviolet Source Produces a Monochromatic Beam of 200-Nm Light

question 32

Multiple Choice

An ultraviolet source produces a monochromatic beam of 200-nm light.A shutter allows a pulse to pass that is 10,000 wavelengths long.The uncertainty in the energy of a photon in this pulse is closest to which of the following? ( h = 1.055 × 10^-34 J • s = 6.59 × 10^-16 eV • s,

• A) 5 × 10^-7 eV
• B) 5 × 10^-6 eV
• C) 5 × 10^-5 eV
• D) 5 × 10^-4 eV
• E) 5 × 10^-3 eV

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Definitions:

Longevity

The length of time that an individual lives or a thing lasts.

Coronary Artery Disease

A condition characterized by the narrowing or blockage of the coronary arteries, leading to a reduced blood flow to the heart muscle and potentially causing heart attacks.

Modifiable Risk Factor

A risk factor for disease or injury that can be reduced or controlled through changes in behavior or environmental exposure.

Sedentary Lifestyle

A way of life that involves little to no physical activity, often associated with increased health risks like obesity and cardiovascular disease.