How many 4 meter telescopes would be required to match the light-gathering power of a 15 meter telescope?
A) 2
B) 6
C) 14
D) 20
Correct Answer:
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Q1: Which of the following is true about
Q3: Which of the following kinds of photons
Q4: The product of the wavelength and frequency
Q5: A TV satellite broadcasts at a frequency
Q6: Compared with infrared waves,radio waves
A)Have higher energy
B)Have
Q7: A particle of light is a
A)Graviton
B)Proton
C)Spectrum
D)Photon
E)Angstrom
Q8: Which of the following forms of electromagnetic
Q9: Suppose you want to determine if there
Q10: The same telescope is used to obtain
Q11: When used at a wavelength of 1
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