JEE Main 2022PhysicsMechanical Properties of SolidsEasyMCQ

JEE Main 2022 — Mechanical Properties of Solids Question with Solution

JEE Main 2022 (26 Jul Shift 2)

Question

The area of cross section of the rope used to lift a load by a crane is 2.5×10-4 m2. The maximum lifting capacity of the crane is 10 metric tons. To increase the lifting capacity of the crane to 25 metric tons, the required area of cross section of the rope should be
(take g=10 ms-2)

Choose an option

Show full solutionCorrect option: A
Correct answer
A6.25×10-4 m2

Step-by-step explanation

Since breaking stress (Maximum lifting capacity) is the property of material, so it will remain same.

Now, breaking stress= Maximum lifting capacity  Area of cross section of rope 

⇒102.5×10-4=25 A

A=625×10-6

=6.25×10-4 m2

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About this question

This is a previous-year question from JEE Main 2022, covering the Mechanical Properties of Solids chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.