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ID#5634 HSC Physics 1st MCQ (Chittagong 2025)

বায়ুর উষ্ণতা $20^{\circ}C$ এবং শিশিরাঙ্ক $12.5^{\circ}C$ হলে আপেক্ষিক আর্দ্রতা কত?
ক) $16.24\%$
খ) $36.24\%$
গ) $56.24\%$
ঘ) $76.24\%$

ব্যাখ্যা

শিশিরাঙ্কে চাপ $f = 9.2 + 0.5 \times (9.9-9.2) = 9.55 mm$. $RH = \frac{f}{F} \times 100\% = \frac{9.55}{16.98} \times 100 \approx 56.24\%$।
Resource Details
Exam HSC
Subject Physics 1st paper
Chapter 10
Board Chittagong
Year 2025

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