JEE Main · Physics · Work, Energy and Power
Power: JEE Main previous year questions
14 questions in the 108 JEE Main shifts Lumi analysed, in 7 of 8 years. Pattern: Asked most years. 4 came in 2024–26. Here is how it is asked and which ideas come back.
- Questions
- 14
- in 14 of 108 shifts
- Years asked
- 7/8
- last asked 2026
- Weighted estimate
- 0.1
- model; history: 0.1 a shift on average, typically 0.1
Key findings
- 01
Asked in 7 of 8 years with analysed shifts and in 14 of 108 shifts: 14 questions, #163 of 196 topics.
- 02
43% of its questions since 2020 tested an idea no earlier year had asked; 5 repeated an idea from the year before.
- 03
The most repeated idea is Kinematics of Constant Power, asked 4 times in 4 shifts (2020, 2021, 2024), most often as “proportionality of distance under constant power”.
- 04
JEE Main has asked 6 of the 59 ideas in this topic; 48 have never been asked, directly or inside another question.
- 05
Mostly asked as single correct (71%); 21% need a numerical answer, 21% are easy and 0% hard.
- 06
The skill tested most is multi-step (43%), then calculation (29%).
Questions a shift, year by year
Out of the 25 Physics questions in a shift. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift.
Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 3 in 24 shifts · 2022: 3 in 24 shifts · 2023: 3 in 12 shifts · 2024: 2 in 18 shifts · 2025: 1 in 8 shifts · 2026: 1 in 9 shifts.
- Up to 2023
- 0.1
- a shift, of 25
- Since 2024
- 0.1
- 0.0
- Usual gap
- 1.0 yrs
- between years asking it
- Shifts with it
- 14/108
- 13% of analysed shifts
How it is asked
Difficulty, format and skill
Across all 14 questions on Power since 2017.
Difficulty
QUESTIONS- Easy3 · 21%
- Medium11 · 79%
- Hard0 · 0%
Format
SHARE- Single correct · 10 Q71%
- Numerical value · 3 Q21%
- Diagram based · 1 Q7%
Skill tested
SHARE- Multi-step · 6 Q43%
- Calculation · 4 Q29%
- Conceptual · 2 Q14%
- Application · 1 Q7%
- Data or graph · 1 Q7%
Repeats
New idea, or one asked before?
Each column is a year. Blue questions tested an idea no earlier year had asked; navy ones went back to an idea from an earlier year. 2017 is the first year, so everything in it counts as new. Heights are question counts, and Lumi analysed 1 to 24 shifts a year, so compare the split inside a column rather than heights across years.
- Idea asked for the first time
- Idea asked in an earlier year
Coverage of the topic
JEE Main has asked 6 of the 59 ideas in this topic. 48 have never been asked yet.
- Asked directly6 · 10%
- Touched inside another question5 · 8%
- Never asked48 · 81%
Ideas come from Lumi’s JEE syllabus map. A never-asked idea is not a safe skip: across all of JEE Main, 22% of questions since 2024 tested an idea no earlier year had asked.
Drill down
Idea, year, question
Every idea JEE Main tested in this topic, with its eight years. Open one to read the questions.
- 5 Apr ’24 S2 · Q35A body is moving unidirectionally under the influence of a constant power source. Its displacement in time t is proportional to :
mediumSingle correct
- 3 Aug ’21 S1 · Q4A constant power is fed to an object, starting from rest, moving along a straight line. The distance travelled by the body in time is…
mediumSingle correctAsked the year before
- 18 Mar ’21 S1 · Q2A constant power delivering machine has towed a box, which was initially at rest, along a horizontal straight line. The distance moved by…
easySingle correctAsked the year before
- 3 Sep ’20 S2 · Q2A particle is moving unidirectionally on a horizontal plane under the action of a constant power supplying energy source. The displacement…
mediumDiagram basedNew idea
- 5 Apr ’24 S2 · Q35
Squares are the 8 years with analysed shifts, 2017 to 2026. A number is the questions that year when there is more than one; the shade is scaled to one shift, so a year with more analysed shifts (1 to 24 a year) does not look darker. Share is of the level above.
Ideas
Every idea inside this topic
6 different ideas were tested; 4 came more than once.
proportionality of distance under constant power
Single correct · 4 shiftsinstantaneous power from time-dependent force
Single correct · 3 shifts · 1 numericalpower of pulling force on incline
Numerical value · 3 shifts · 2 numericalpower ratio of motors lifting water
Single correct · 2 shiftspower in non-uniform circular motion
Single correct · 1 shiftpower to keep belt moving as sand falls
Single correct · 1 shift
| Idea | Years asked | Times | Shifts | Format | Numerical |
|---|---|---|---|---|---|
| Kinematics of Constant Powerproportionality of distance under constant power | 4 | 4 | Single correctConceptual | – | |
| 3D Vector Calculation of Powerinstantaneous power from time-dependent force | 3 | 3 | Single correctMulti-step | 1 | |
| Instantaneous Powerpower of pulling force on incline | 3 | 3 | Numerical valueMulti-step | 2 | |
| Power in Fluid Flowpower ratio of motors lifting water | 2 | 2 | Single correctCalculation | – | |
| Power in Non-Uniform Circular Motionpower in non-uniform circular motion | 1 | 1 | Single correctMulti-step | – | |
| Power of Conveyor Belt Mass Additionpower to keep belt moving as sand falls | 1 | 1 | Single correctCalculation | – |
Times and shifts count every analysed shift. Across JEE Main, 78% of questions since 2024 went back to an idea an earlier year had asked; the rest were new. All repeated ideas
Every question
Power questions, year by year
The opening words of each question as it appeared in the official paper, with the idea it tested. Open one for its options and the official answer.
JEE Main 20261 question in 1 shift
- 4 Apr, Shift 1Q49A body of mass kg begins to move under the influence of time dependent force N, where…
Idea: 3D Vector Calculation of Power
Asked the year beforeMediumNumerical value
JEE Main 20251 question in 1 shift
- 7 Apr, Shift 1Q28An object of mass 1000 g experiences a time dependent force . The power…
Idea: 3D Vector Calculation of Power
Asked the year beforeMediumSingle correct
JEE Main 20242 questions in 2 shifts
- 5 Apr, Shift 2Q35A body is moving unidirectionally under the influence of a constant power source. Its displacement in time t is proportional to :
Idea: Kinematics of Constant Power
MediumSingle correct - 31 Jan, Shift 2Q35A body of mass 2 kg begins to move under the action of a time dependent force given by N.…
Idea: 3D Vector Calculation of Power
New ideaMediumSingle correct
JEE Main 20233 questions in 3 shifts
- 10 Apr, Shift 2Q54If the maximum load carried by an elevator is 1400 kg (600 kg - Passengers + 800 kg - elevator), which is moving up with a uniform speed…
Idea: Instantaneous Power
MediumNumerical value - 11 Apr, Shift 2Q54A block of mass starting from rest pulled up on a smooth incline plane making an angle of with horizontal with…
Idea: Instantaneous Power
MediumNumerical value - 13 Apr, Shift 1Q41The ratio of powers of two motors is , that are capable of raising 300 kg water in 5 minutes and 50 kg water…
Idea: Power in Fluid Flow
Asked the year beforeMediumSingle correct
JEE Main 20223 questions in 3 shifts
- 27 Jul, Shift 1Q33Sand is being dropped from a stationary dropper at a rate of 0.5 kgs on a conveyor belt moving with a velocity of 5 ms. The…
Idea: Power of Conveyor Belt Mass Addition
New ideaEasySingle correct - 28 Jun, Shift 1Q32A particle of mass is moving in a circular path of constant radius such that its centripetal acceleration () is varying with…
Idea: Power in Non-Uniform Circular Motion
New ideaMediumSingle correct - 28 Jun, Shift 2Q35Water falls from a 40 m high dam at the rate of kg per hour. Fifty percentage of gravitational potential energy can be…
Idea: Power in Fluid Flow
New ideaEasySingle correct
JEE Main 20213 questions in 3 shifts
- 3 Aug, Shift 1Q4A constant power is fed to an object, starting from rest, moving along a straight line. The distance travelled by the body in time is…
Idea: Kinematics of Constant Power
Asked the year beforeMediumSingle correct - 3 Aug, Shift 2Q20A block of mass 4.0 kg is pulled up on a smooth incline of angle with the horizontal. If the block moves with an acceleration…
Idea: Instantaneous Power
New ideaMediumSingle correct - 18 Mar, Shift 1Q2A constant power delivering machine has towed a box, which was initially at rest, along a horizontal straight line. The distance moved by…
Idea: Kinematics of Constant Power
Asked the year beforeEasySingle correct
JEE Main 20201 question in 1 shift
- 3 Sep, Shift 2Q2A particle is moving unidirectionally on a horizontal plane under the action of a constant power supplying energy source. The displacement…
Idea: Kinematics of Constant Power
New ideaMediumDiagram based · figure
Questions from the official JEE Main Paper 1 shifts published by NTA (CBSE for 2017). Questions NTA dropped are left out. Topic and idea tags, counts and notes are Lumi’s.