यदि धुंध में दृश्यता धीरे धीरे घटकर कोहरे जैसी हो जाए तो कौन सा परिवर्तन सबसे निर्णायक माना जाएगा?
If visibility in mist gradually falls and becomes like fog which change should be considered most decisive?
Explanation opens after your attempt
D. हवा में संघनित बूंदों की संख्या या सघनता बढ़नाIncrease in number or concentration of condensed droplets in air
Concept
When droplet concentration increases more light is scattered and visibility falls. Exam tip: connect the mist fog boundary with visibility and droplet density.
Why this answer is correct
The correct answer is D. हवा में संघनित बूंदों की संख्या या सघनता बढ़ना / Increase in number or concentration of condensed droplets in air. When droplet concentration increases more light is scattered and visibility falls. Exam tip: connect the mist fog boundary with visibility and droplet density.
Exam Tip
बूंदों की सघनता बढ़ने से प्रकाश अधिक बिखरता है और दृश्यता घटती है। परीक्षा में mist fog boundary को visibility और droplet density से जोड़ें।
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