What Resolving Power Must a Diffraction Grating Have in Order

question 1

Multiple Choice

What resolving power must a diffraction grating have in order to distinguish wavelengths of 686.30 nm and 687.50 nm? (1 nm = 10−⁹ m)

• A)343
• B)572
• C)686.9
• D)915
• E)​687.5

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Definitions:

MEO

Medium Earth Orbit, referring to satellites that orbit the earth at altitudes between Low Earth Orbit (LEO) and Geostationary Orbit (GEO), commonly used for navigation and communication.

Low-Power Transmitters

Electronic devices designed to broadcast signals over a short distance with limited power output, often used in personal or localized broadcasting scenarios.

GEO

Stands for Geostationary Earth Orbit, a type of orbit 35,786 kilometers above the Earth's equator and following the direction of the Earth's rotation.

LEO

Low Earth Orbit, a region of space around the Earth at altitudes between 160 to 2,000 kilometers, often used for satellites that require close communication with Earth.