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 is cooling of air to the dew point necessary for fog formation?

Answer and explanation

Correct answer: Because only then water vapour can condense into tiny droplets (क्योंकि तभी जलवाष्प सूक्ष्म बूंदों में संघनित हो सकती है)

Correct answer: A. The dew point is the temperature to which air must be cooled, at a given moisture content and pressure, for it to become saturated. As air approaches saturation, it cannot retain all its water vapour, so some vapour condenses into tiny droplets around suitable particles in the air. When these droplets remain suspended near the ground, fog forms. B is wrong because air at the dew point is saturated or nearly saturated, not completely dry. C is wrong because dew point describes air moisture and temperature, not rock temperature. D is wrong because reaching the dew point does not make air pressure zero. Memory cue: dew point means saturation point for cooling air.

Related tags

FogDew PointSaturationCondensationForms Of Condensation: DewFrostAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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.