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JEE Main 201219 MayOnline

Exam: JEE Main
Year: 2012
Date: 19 May
Mode: Online
Subject: Physics
Chapter: Mechanical Properties of Solids

JEE Main 2012 · 19 May · Online · Physics · Mechanical Properties of Solids

A steel wire can sustain 100 ~kg weight without breaking. If the...

A steel wire can sustain

100 \mathrm{~kg}

weight without breaking. If the wire is cut into two equal parts, each part can sustain a weight of

Options

A $50 \mathrm{~kg}$
B $400 \mathrm{~kg}$
C $100 \mathrm{~kg}$
D $200 \mathrm{~kg}$

Correct answer

C. $100 \mathrm{~kg}$

Step-by-step solution

Breaking force

\alpha

area of cross section of wire Load hold by wire is independent of length of the wire.

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