IGCSE · 6 · multiple choice
Space physics · Question 5
Space physics · Original GioPhysics question with a detailed, mark-by-mark answer guide.
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multiple choice1 mark
A star with a mass much greater than that of the Sun reaches the end of its life. Which sequence of stages is correct?
- A
red giant → planetary nebula → white dwarf
- B
red supergiant → supernova → neutron star or black hole
- C
white dwarf → supernova → red supergiant
- D
protostar → white dwarf → black hole
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Answer overviewCorrect answer: B — red supergiant → supernova → neutron star or black hole
01
1 markAnswer and reasoning
How to approach it
Predict from the governing principle before looking for a matching option. Then reject alternatives by checking direction, units, limiting behaviour or the physical meaning of each statement.
- 1
The correct choice is B: red supergiant → supernova → neutron star or black hole
- 2
A is the route for a star of about the Sun's mass, and is the answer of a candidate who has learned one life cycle rather than two.
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