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Physics · PYQ NEET UG 2019(1)

हिन्दी

A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when:

  1. the mass is at the lowest point
  2. inclined at an angle of 60° from vertical
  3. the mass is at the highest point
  4. the wire is horizontal

Correct answer · Option 1

the mass is at the lowest point

Explanation

Tension in the string is maximum at the lowest point of the vertical circle (\( T_{max} = mg + \frac{mv^2}{R} \)), hence the wire is most likely to break there.
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