What Is the Energy of a Photon That Has a Wavelength

question 46

Multiple Choice

What is the energy of a photon that has a wavelength equal to the de Broglie wavelength of a proton having a speed of 7.1 × 10⁴ m/s? (m_proton = 1.67 × 10^-27 kg, c = 3.00 × 10⁸ m/s)

• A) 220 keV
• B) 150 keV
• C) 290 keV
• D) 360 keV
• E) 440 keV

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Definitions:

Normal Temperature Ranges

The averaging body temperature measurement for a healthy individual, typically ranging from 97°F to 99°F (36.1°C to 37.2°C).

Fever

An temporary increase in body temperature often due to an infection or illness.

Blood Pressure (BP)

The pressure of circulating blood against the walls of blood vessels, an indicator of cardiovascular health.

Caffeine

A stimulant found in various foods and beverages, including coffee and tea, known for its ability to enhance alertness and combat fatigue.