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What is the effect of very small fog droplets on visibility?

Answer and explanation

Correct answer: They scatter light and reduce visibility

Correct answer: A. Fog contains numerous tiny liquid droplets suspended near the ground. When light travels through this collection of droplets, it is scattered in different directions rather than continuing in a clear straight path. This scattered light creates a bright or whitish veil and reduces contrast between an object and its background. As a result, distant objects appear blurred, faint, or invisible, even though the droplets are individually too small to fall quickly as rain. A is correct because it describes the optical process responsible for poor visibility. B is wrong: droplets do not simply make light completely stronger; scattering makes the view less clear. C is wrong because fog droplets do not stop gravity. D is wrong because they do not equalise all temperatures. Memory cue: tiny droplets scatter light, and scattered light means reduced contrast and visibility.

Related tags

Fog DropletsVisibilityLight ScatteringForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeographyClass 12 Mcq

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