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:

Bottom of a Row

The last cell or area in a horizontal row within a table or spreadsheet.

Intersection

A point where two lines, paths, or elements meet or cross.

Row and Column

Fundamental structural elements of spreadsheets and tables, where rows run horizontally, and columns run vertically.

Cell

In spreadsheet software, a cell is the intersection point of a column and row, used to enter and store data.