Physics · Astronomy and Astrophysics
Consider the following statements regarding stellar evolution and protostars: I. A protostar forms from the gravitational collapse of a giant molecular cloud. II. The protostar stage ends when stable hydrogen fusion ignites in its core, moving it to the main sequence. III. Protostars are typically highly visible and easily observed through standard optical telescopes. IV. T-Tauri stars represent an evolutionary stage after the protostar phase in low-mass stars. How many of the above statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1All four
- 2Only three✓
- 3Only two
- 4Only one
Correct answer
Only three
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