Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Why can visual warning signals appear weak in dense fog?

Answer and explanation

Correct answer: Tiny water droplets scatter light

Direct answer: A is correct. Dense fog contains many tiny water droplets suspended near the ground. Light from a lamp, sign, or vehicle travels through these droplets, and the droplets scatter the light in different directions. This reduces contrast and makes the signal look blurred, dim, or less distinct; it also shortens the distance from which objects can be seen. A correctly connects fog droplets with light scattering and reduced visibility. B is wrong because gravity continues to act normally. C is wrong because water vapour or fog does not simply create black colour. D is unrelated to the optical effect. Memory cue: fog scatters light, so visibility falls.

Related tags

Dense FogLight ScatteringVisibilityForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeographyClass 12 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.