Question

Kamali spends a lot of time studying for examinations, including reading books and organising thoughts. Why would a scientist argue that this 'hard work' involves very little 'work' in the scientific sense?

Asked in RRB Group D · 2025
Work · Physics
Exam PYQ4 Options
PhysicsWork Power EnergyWorkRRB Group D2025
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Mechanical work equals force times displacement in the force direction: W = Fs cos θ.

Correct AnswerCorrect option for this question
Option A — Because displacement is necessary, and studying involves zero or minimal physical displacement of the body.

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Questions Asked from Power: Formula, Units & Horsepower in Previous Exams

See how often Power: Formula, Units & Horsepower has appeared in previous-year questions across major government exams.

High Exam Frequency
14UPSC Questions Asked in These Years:2010, 2011, 2012, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2023, 2024, 2026
9SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
7Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2024, 2025, 2026
16State PSC Questions Asked in These Years:2002, 2004, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Power: Formula, Units & Horsepower has appeared in 46 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
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