QUESTION 47 Compared with our Sun, the star Betelgeuse is O a smaller, hotter, and less luminous b. smaller, cooler, and
Posted: Tue May 17, 2022 7:08 pm
- Question 47 Compared With Our Sun The Star Betelgeuse Is O A Smaller Hotter And Less Luminous B Smaller Cooler And 1 (21.39 KiB) Viewed 91 times
- Question 47 Compared With Our Sun The Star Betelgeuse Is O A Smaller Hotter And Less Luminous B Smaller Cooler And 2 (63.05 KiB) Viewed 91 times
- Question 47 Compared With Our Sun The Star Betelgeuse Is O A Smaller Hotter And Less Luminous B Smaller Cooler And 3 (9.6 KiB) Viewed 91 times
QUESTION 48 Main sequence O stars are more luminous than the Sun because they a. have more weight pressing on their cores. b. contain more fuel. c. have higher surface temperatures. d. have lower densities. QUESTION 49 According to stellar evolution theory, a star like the sun will eventually O a. Explode in a supernova. b. Become a black hole. c. Change into a white dwarf. d. Become a neutron star. QUESTION 50 Double stars or binary star systems are important in astronomy because a. All stars are double. b. They are very beautiful. c. They evolve quickly enough for us to see the changes. O d. Study of their orbits allows us to determine their physical properties.
QUESTION 51 By what mechanism does solar energy reach the Sun's photosphere from the layer just underneath it? a. lonization. b. Radiation c. Convection. d. Conduction.