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Scattering of light

10 PYQ across 6 exams · 1981–2025 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CSE 1981 → CDS 2018 → … → GEO 2022
19811 PYQ
CSEQ17
To an astronaut in the spacecraft, the sky colour appears to be…
19821 PYQ
CSEQ19
To astronaut in the spacecraft, the sky appears to be…
20181 PYQ
CDSQ34
When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation …
20201 PYQ
NDAQ141
The Sun appears reddish during sunrise and sunset. The phenomenon in optics which is responsible for this appearance of the Sun is…
20211 PYQ
NDAQ129
Tyndall effect is a phenomenon of…
20223 PYQs
CAPFQ23
The optical phenomenon responsible for the blue colour of sky is…
CISFQ54
The blue colour of the sky and the reddening of the Sun at sunrise and sunset are caused due to the phenomenon of :…
GEOQ86
Which one of the following statements is true about the appearance of colour of the Sun in the sky?…
20231 PYQ
NDAQ51
The streaming of light beams coming from the Sun through trees is said to have suggested that light travels in straight line. The particles …
20251 PYQ
NDAQ136
What happens when the sunlight travels through the Earth's atmosphere?…
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