BPSC – Combined Competitive Examination · প্রশ্ন 124
In which medium is the speed of sound maximum?
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (A) Steel
ব্যাখ্যা
Sound is fastest in solids, then liquids, then gases; steel is the fastest medium here.
- (A) সঠিক
Correct: sound travels fastest in solids like steel (~5000–6000 m/s).
- (B) ভুল
Wrong: about 1500 m/s, slower than steel.
- (C) ভুল
Wrong: about 343 m/s, the slowest here.
- (D) ভুল
Wrong: about 1270 m/s, still slower than steel.