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QJEEM19Phd9c0: JEE Main 2019 Physics - Class 11 JEEM19Phd9c0 Solution: In an experiment, brass and steel wires of length 1 m each with …
In an experiment, brass and steel wires of length 1 m each with areas of cross section 1mm2 are used. The wires are connected in series and one end of the combined wire is connected to a rigid support and other end is subjected to elongation. The stress required to produce a net elongation of 0.2 mm is, [Given, the Young's Modulus for steel and brass are, respectively, 120 × 109 N/m2 and 60 × 109 N/m2]
Multiple Choice Options
- A 8.0 × 106 N/m2
- B 1.2 × 106 N/m2
- C 0.2 × 106 N/m2
- D 1.8 × 106 N/m2
Step-by-Step Verified Solution
Corresponding to the stress (
Total elongation
Total elongation