Sample questions
You've seen the pattern — here are a few of the actual PYQs.
NDA2025
Which one of the following findings is NOT observed in Rutherford's Nuclear Model of Atom?
- A There is a neutral centre in an atom called nucleus ✓
- B Nearly all the mass of an atom resides in the nucleus
- C The electrons revolve around the nucleus in a circular path
- D The size of a nucleus is very small as compared to the size of atom
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
NDA2024
Which one of the following scientists mentioned that an electron in an atom could revolve in certain stable orbits without the emission of radiant energy?
- A Ernest Rutherford
- B J.J. Thomson
- C Niels Bohr ✓
- D Albert Einstein
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
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