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:T4bc,{"@context":"https://schema.org","@type":"Quiz","name":"Mht Cet 2026 Waves PYQ with Solution","url":"https://pyq-test-series-platform-alsjdcxu2-sameers-projects-41c5a71e.vercel.app/mht-cet/questions/2026/physics/waves/jt-mr4nphit","educationalLevel":"Entrance exam preparation","about":"Mht Cet / Physics / Waves","hasPart":{"@type":"Question","name":"Mht Cet 2026 Waves PYQ with Solution","text":"A tuning fork gives 5 beats per second with a 33 cm length of sonometer wire. If the length of the wire is shortened by 1 cm, the number of beats is still the same. The frequency of the fork is","eduQuestionType":"mcq","acceptedAnswer":{"@type":"Answer","text":"B"},"comment":{"@type":"Comment","text":"For a sonometer wire, when tension and mass per unit length remain the same, the frequency is inversely proportional to the length: f \\propto \\frac{1}{l} So, f=\\frac{k}{l} where k is a constant. For length 33 cm, frequency of the wire is f_1=\\frac{k}{33} For length 32 cm, frequency of the wire is f_2=\\frac{k}{32} When the wire is shortened, its frequency increases. So, f_2>f_1 The tuning fork gives 5 beats per second with both lengths. This means the frequency of the tuning fork is 5 Hz away fr..."}}}18:T536,

For a sonometer wire, when tension and mass per unit length remain the same, the frequency is inversely proportional to the length:

$$ f \propto \frac{1}{l} $$

So,

$$ f=\frac{k}{l} $$

where $k$ is a constant.

For length $33$ cm, frequency of the wire is

$$ f_1=\frac{k}{33} $$

Waves

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