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ID#5743 HSC Physics 1st MCQ (Sylhet 2025)

সূর্যের ভরের (M) রাশিমালা নিচের কোনটি?
ক) (3πr²)/(GT²)
খ) (3πr³)/(GT)
গ) (4π²r³)/(GT²)
ঘ) (3π²r²)/(GT²)

ব্যাখ্যা

কেপলারের ৩য় সূত্র থেকে $T^2 = \frac{4pi^2 r^3}{GM}$।
সুতরাং, $M = \frac{4pi^2 r^3}{GT^2}$।
Resource Details
Exam HSC
Subject Physics 1st paper
Chapter 6
Board Sylhet
Year 2025

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