Friction - NEET Previous Year Questions with Complete Solutions

NEET typically has 1–2 questions directly from friction each year. These fall under the Laws of Motion unit. Over the 2010–2024 period, NTA asked approximately 22–29 friction-related questions in total, averaging about 1.5 per paper. Some years had 2 questions; a few years had none.

Yes. Friction remains a core topic in the NTA NEET syllabus under Class 11 Physics – Laws of Motion. NTA has not removed it from the official syllabus. Given its consistent appearance in past papers and its applicability in real-world force scenarios, it is a reliable scoring topic if formulas and FBD methods are solid.

Static friction acts when the object is stationary and adjusts itself up to a maximum value (μ_s × N). Kinetic friction acts when the object is already in motion and remains constant at μ_k × N. In NEET, the key is identifying which type applies: check if the object moves or is on the verge of moving before selecting your formula.

The angle of repose (θ_r) is the maximum incline angle at which a block remains stationary without sliding. It satisfies tan θ_r = μ_s. NTA tests this both as a direct formula question and as a comparison question (e.g., "which surface has a higher angle of repose?"). It is also equal to the angle at which a block slides at constant velocity (where tan θ = μ_k).

Solve PYQs year-wise rather than topic-wise first. This trains you to identify the question type quickly, just as you would in the actual NEET paper. After completing all years, switch to topic-wise revision to fill concept gaps. Always solve without looking at the solution first, then compare your method — not just your answer — with the worked solution provided.