Question

Which of the statement(s) is/are NOT true about the phenomenon of scattering of light:
(i) The amount of scattering light undergoes is independent of the size of particles of the medium through which light is passing.
(ii) The amount of scattering is directly proportional to the wavelength of light.
(iii) The colour of the sky appears blue as blue light undergoes more scattering as compared to red light.
(iv) The colour of danger signal is red as red colour undergoes least amount of scattering when passing through fog.

Asked in RRB Group D · 2026
Natural Phenomenon · Physics
Exam PYQ4 Options
PhysicsOpticsNatural PhenomenonRRB Group D2026
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A concave mirror forms a real, inverted and highly diminished image of an object at infinity.

Correct AnswerCorrect option for this question
Option B — Both (i) and (ii)

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Questions Asked from LASER & Optical Fibre in Previous Exams

See how often LASER & Optical Fibre has appeared in previous-year questions across major government exams.

High Exam Frequency
9UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2019, 2021, 2022, 2023, 2024
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
15State PSC Questions Asked in These Years:2002, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
LASER & Optical Fibre has appeared in 40 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
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