Question

Which of the following is chosen as a standard reference for determining atomic masses?

Asked in RRB Group D · 2025
Nucleus · Physics
Exam PYQ4 Options
PhysicsNuclear PhysicsNucleusAtomic MassesRRB Group D2025
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Scalar quantities have magnitude only; vectors have magnitude and direction.

Correct AnswerCorrect option for this question
Option D — Carbon-12

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Questions Asked from Famous Physicists & Their Discoveries: Modern Physics & Nuclear Age in Previous Exams

See how often Famous Physicists & Their Discoveries: Modern Physics & Nuclear Age has appeared in previous-year questions across major government exams.

High Exam Frequency
12UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2014, 2017, 2018, 2019, 2020, 2023, 2024, 2026
11SSC Questions Asked in These Years:2014, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
9Railways Questions Asked in These Years:2016, 2018, 2020, 2021, 2022, 2023, 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
Famous Physicists & Their Discoveries: Modern Physics & Nuclear Age has appeared in 48 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
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