- (A) Water
- (B) Air
- (C) Steel
- (D) Vacuum
_______ is considered the largest glacier of Pakistan.
March 18, 2026
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- (A) Siachen Glacier
- (B) Tirich Mir Glacier
- (C) Biafo Glacier
- (D) Hispar Glacier
Velocity of sound is maximum in:
Velocity of sound is maximum in:
- The fastest speed that sound can travel is in steel. Sound waves are mechanical waves, which means that they need a material to travel through. They travel the fastest in solids because the material is more tightly packed, making the vibrations travel faster than in liquids or gases.
- Steel (Solid): ~5,960 m/s (meter per sec.)
- Water (Liquid): ~1,480 m/s (meter per sec.)
- Air (Gas): ~343 m/s (meter per sec.)
- Vacuum: 0 m/s (Sound cannot travel through a vacuum).
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