Question 77 The Red Supergiant Star Betelgeuse Auto Mentre 2900 Kelvin Is Substantially Cooler Than The Sun In What W 1 (26.84 KiB) Viewed 103 times
Question 77 The Red Supergiant Star Betelgeuse Auto Mentre 2900 Kelvin Is Substantially Cooler Than The Sun In What W 2 (31.12 KiB) Viewed 103 times
QUESTION 77 The red supergiant star Betelgeuse, auto mentre 2900 Kelvin, is substantially cooler than the sun. In what wavelength region de of its Mght? a visible b.ultraviolet c. infrared d. microwave QUESTION 78 Where would be the best place to locate a telescope for observing gamma rays from celestial objects? a. Near the ocean. I like to be there. b. In a desert far from cities. c. On the top of Burj Khalifa in Dubai. d. On a space station.
QUESTION 79 Which of the following statemendio waves is NOT true? a. X rays have shorter Wavelethos. Ob. X rays have higher frequency than radio waves. Ос. X rays travel through space faster than radio waves. Od Xrays and radio waves are both forms of light, or electromagnetic radiation QUESTION 80 What is the magnification of a telescope if the telescope has a focal length of 200 cm and uses an eyepiece with a focal length of 0.2 cm? O a. 400 times. b. 4000 times c. 100 times. d. 1000 times
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