What is a photon?
A) a type of electromagnetic radiation
B) a particle within the atmospheric window
C) a particle produced when light interacts with vacuum
D) a particle of light
Correct Answer:
Verified
Q9: Which of the following types of light
Q10: Why do astronomers build radio telescopes?
A)Radio waves
Q17: How does the energy of a photon
Q19: What is the longest wavelength of light
Q19: Which of the following types of light
Q22: Why can't a telescope image be magnified
Q24: What does a nanometre measure?
A)frequency
B)energy
C)mass
D)length
Q25: You point your backyard reflecting telescope at
Q52: What is the main reason for building
Q54: What is the light-gathering power of a
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