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Friday, 9 October

NEET UG 2017 · Physics · Question 35

NEET 2017 Physics, question 35

Question 35 of the NEET 2017 paper (code A) is a Physics question from Thermal Properties of Matter. Its idea, Stefan-Boltzmann Law, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 4.

Updated 2026-10-08

Q35 · Physics

A spherical black body with a radius of 12 cm radiates 450 watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be :

  1. 1225
  2. 2450
  3. 31000
  4. 41800Official answer

Official answer: option 4 · CBSE official answer key

Same idea

The only question on Stefan-Boltzmann Law

No other NEET paper from 2017–2026 tested this exact idea.

Stefan-Boltzmann Law: every question and how it was framed

The chapter

Thermal Properties of Matter in ten years of NEET

10 questions from 2017–2026, asked in 8 of 10 papers, about 1.0 a paper. Heat Transfer and Thermal Expansion alone had 8.

Thermal Properties of Matter: questions per paper

0242’171’182’191’201’210’220’231’241’251’26