16:I[8216,["972","static/chunks/972-b28da0de92681928.js","47","static/chunks/47-a7f06e9eda1ac756.js","115","static/chunks/app/%5Bexam%5D/questions/%5Byear%5D/%5Bsubject%5D/%5Bchapter%5D/%5BquestionId%5D/page-7b6f0a12b9cc0206.js"],"BackButton"] 17:I[1553,["972","static/chunks/972-b28da0de92681928.js","47","static/chunks/47-a7f06e9eda1ac756.js","115","static/chunks/app/%5Bexam%5D/questions/%5Byear%5D/%5Bsubject%5D/%5Bchapter%5D/%5BquestionId%5D/page-7b6f0a12b9cc0206.js"],"QuestionViewer"] 15:T4df,{"@context":"https://schema.org","@type":"Quiz","name":"Mht Cet 2025 Waves PYQ with Solution","url":"https://pyq-test-series-platform-alsjdcxu2-sameers-projects-41c5a71e.vercel.app/mht-cet/questions/2025/physics/waves/mezezt5k","educationalLevel":"Entrance exam preparation","about":"Mht Cet / Physics / Waves","hasPart":{"@type":"Question","name":"Mht Cet 2025 Waves PYQ with Solution","text":"A person standing between two parallel cliffs fires a gun and hears two echoes, first echo after 1 second and the second echo after 3 second. The distance between the two cliffs is (Velocity of sound =340 \\mathrm{~m} / \\mathrm{s} )","eduQuestionType":"mcq","acceptedAnswer":{"@type":"Answer","text":"B"},"comment":{"@type":"Comment","text":"A person stands between two parallel cliffs, fires a gun, and hears two echoes : First echo after 1 second Second echo after 3 seconds Speed of sound v = 340 \\, \\mathrm{m/s}. We want the distance between the two cliffs. Step 1: Relation for echo For an echo, sound travels from the person to the cliff and back. So if distance from the person to a cliff is d, the round-trip distance is 2d. Echo time is t = \\frac{2d}{v}. So, d = \\frac{vt}{2}. Step 2: Find distances to the two cliffs For the first..."}}}18:T50e,

A person stands between two parallel cliffs, fires a gun, and hears two echoes:

First echo after 1 second
Second echo after 3 seconds

Speed of sound $v = 340 \, \mathrm{m/s}$.

Waves

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