Question

According to the Heisenberg uncertainty principle, what happens when the precision in measuring position increases?

Asked in RRB JE CBT 2 (CMA) · 2026
Heisenberg’s Uncertainty Principle · Physics
Exam PYQ4 Options
PhysicsDual Nature: Photon and Matter WavesHeisenberg’s Uncertainty PrincipleRRB JE CBT 2 (CMA)2026
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Scalar quantities have magnitude only; vectors have magnitude and direction.

Correct AnswerCorrect option for this question
Option C — Greater precision in one variable leads to greater uncertainty in other

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Questions Asked from Basics of Quantum Physics in Previous Exams

See how often Basics of Quantum Physics has appeared in previous-year questions across major government exams.

High Exam Frequency
12UPSC Questions Asked in These Years:2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2024
10SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
7Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2024, 2025, 2026
14State PSC Questions Asked in These Years:2002, 2012, 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Basics of Quantum Physics has appeared in 43 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
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