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Waves and Sound — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsWaves and Sound1 Mark
MCQ
A man is standing between two parallel cliffs and fires a gun. If he hears first and second echoes after $1.5 s$ and $3.5 s$ respectively, the distance between the cliffs is (Velocity of sound in air $=340 \mathrm{~ms}$ )
  • A
    $1190 \mathrm{~m}$
  • ✓
    $850 \mathrm{~m}$
  • C
    $595 \mathrm{~m}$
  • D
    $510 \mathrm{~m}$
✓

Answer

Correct option: B.
$850 \mathrm{~m}$

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