Physics - Rotational Motion
Practise 4 IAT (IISER) previous year questions on Rotational Motion, compiled from papers spanning 2021 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty IAT (IISER) tests.
Rotational Motion has been asked in 3 of the 9 years of IAT (IISER) papers analysed (2017–2026), with 4 questions in all. 0% of them were easy, 75% moderate and 25% tough. Most of its questions came from 2026, with 1 question that year. In the last three years (2023–2026) it had 2 questions across 3 papers, about 0.7 per paper.
The chapter's 2 topics are not weighted equally: Angular momentum and Angular impulse (2 questions, 50%) and Torque (2 questions, 50%) have been asked the most. Over the last five years the most frequent topics have been Torque (2) and Angular momentum and Angular impulse (1). Angular momentum and Angular impulse has produced the most tough questions (1).
- 1The position of a particle of mass 1 kg at time is given by , where is in seconds and the coefficients have the proper units for to be in me2026Angular momentum and Angular impulse
- 2A circular disk of mass and radius is rotating clockwise with a uniform angular velocity about an axis passing through the centre, normal to2025Torque
- 3An inextensible cord of negligible mass passes over the rim of a solid disc of mass and radius . The disc is free to rotate about an axis pa2024Torque
- 4A door of mass and width is hinged at one end and rotates about a vertical axis without friction. A bullet of mass fired perpendicularly to 2021Angular momentum and Angular impulse
Frequently Asked Questions
1.How many questions are available for Rotational Motion?
This chapter includes 4 questions compiled from IAT (IISER) papers spanning 2021 to 2026.
2.Are these questions only from IAT (IISER), or from other exams too?
These are IAT (IISER) questions specifically for the Rotational Motion chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Rotational Motion an important chapter for IAT (IISER) Physics?
Rotational Motion has appeared in 4 of the 10 years of IAT (IISER) papers covered here, with 4 questions across 4 papers - about one per paper it appears in.
4.What is the difficulty level of Rotational Motion questions in IAT (IISER)?
Of the 4 questions analysed for this chapter, 0% are easy, 75% moderate and 25% tough. 2026 had the most, with 1 question.
5.Which topics in Rotational Motion should I focus on?
These topics have carried the most weightage in Rotational Motion:
- Angular momentum and Angular impulse - 2 questions (50%)
- Torque - 2 questions (50%)
- Angular momentum and Angular impulse has produced the most tough questions (1).
6.Is Rotational Motion's weightage in IAT (IISER) going up or down?
Across all 4 papers analysed, Rotational Motion has averaged about 1.0 questions per paper. In the last three years (2023–2026), that average has fallen, at about 0.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.