What Is the Energy of a Photon That Has a Wavelength

question 21

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 × 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:

Investment Turnover

A ratio that measures the efficiency of a company in generating sales or revenues from its investment in assets.

Invested Assets

Invested assets refer to resources or capital that have been allocated to investments, including stocks, bonds, real estate, or other financial assets, aimed at generating future returns.

Sales

How revenue from the sale of merchandise is recorded; the total amount charged customers for merchandise sold, including cash sales and sales on account.

Investment Turnover

A ratio that measures the efficiency of a company in generating sales or revenue from its invested assets.