Question

The limit beyond which stars suffer internal collapse is called the

• A. Raman Effect
• B. Chandrasekhar limit
• C. Aurora Borealis
• D. Quasar Zone

Hint:

The Chandrasekhar limit is about 1.4 solar masses, the ceiling for a stable white dwarf.

Answer 1

The Correct Option is B

Each option here names a distinct, well-known scientific phenomenon, so the task is to isolate the one about stellar collapse.

1. Raman Effect: Concerns how light changes wavelength when it scatters off molecules, a topic in optics, not astrophysics.
2. Chandrasekhar limit: The maximum mass (about 1.4 solar masses) a white dwarf star can have while still being supported by electron degeneracy pressure; beyond this mass, the star collapses further, matching the question exactly.
3. Aurora Borealis: The colourful light display in polar skies caused by solar wind particles interacting with Earth's atmosphere, unrelated to stellar collapse.
4. Quasar Zone: Not a recognised term for a stellar mass limit.

So the correct answer is option B, the Chandrasekhar limit.