Per NCERT, what everyday phenomenon is the TYNDALL EFFECT responsible for — referenced in the chapter's opening 'Think It Over'?
AWhy ice melts above 0 °C
BBright rays of sunlight visible through small gaps between dense tree leaves (or through a dusty room) — because air contains colloidal dust scattering light
CWhy sugar dissolves in water
DThe colour of a clear blue sky on a cloudless day
Answer & Solution
Correct answer: B. Bright rays of sunlight visible through small gaps between dense tree leaves (or through a dusty room) — because air contains colloidal dust scattering light
Per NCERT's opening Think It Over, the Tyndall effect explains visible sunbeams through dust/foliage — light scattering off colloidal particles in air.
Related questions
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