11-CH-9-Lect-4-Mechanical Properties of Solids-Exercise Examples - 9.1 to 9.5

A steel wire of length 4.7 m and cross-sectional area 3.0 • 10-5 m2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4.0 • 10-5 m2 under a given load. What is the ratio of the Young’s modulus of steel to that of copper?, Figure 9.11 shows the strain-stress curve for a given material. What are (a) Young’s modulus and (b) approximate yield strength for this material? , The stress-strain graphs for materials A and B are shown in Fig. 9.12.
The graphs are drawn to the same scale.
(a) Which of the materials has the greater Young’s modulus?
(b) Which of the two is the stronger material?
, Read the following two statements below carefully and state, with reasons, if it is true or false.
(a) The Young's modulus of rubber is greater than that of steel;
(b) The stretching of a coil is determined by its shear modulus.
, Two wires of diameter 0.25 cm, one made of steel and the other made of brass are loaded as shown in Fig. 9.13. The unloaded length of steel wire is 1.5 m and that of brass wire is 1.0 m. Compute the elongations of the steel and the brass wires. , Exercise Examples - 9.1 to 9.5 , Mechanical Properties of Solids , Physics11, Physics12, Physics, 11thclass, 11th science, 11th physics, 12th class, 12th science, 12th physics, jee, jeemains, jee advance, neet, neet previous year questions, neet pyqs, jee previous year questions, jee pyqs, ncertphysics, ncert 11th physics, ncert 12th physics, neet mcqs, jee mcqs, ncert solutions, ncert 11 numerical, ncert 12 numerical, iit-jee preparation, neetpreparation, neet exam, jee exam, cbse exam, board exam, gseb board, ncert11, ncert12, cbse11, cbse12, gseb11, gseb12, Physics, 11thclass, 11thscience, 11thphysics, physicswallah, physicsacademy, jee, jeemains , jeeadvanced, neet, neet2023, neet2022, neet2021, neetexam, jee2023, jee, 12th, 12thclass 12thphysicsmcqs2022, 12thphysicsmcqs2023, ncert, ncertsolutions, ncertphysics, jee2026 ,jee2025 ,jee2024, jee2023, jee2022, jee2021, jee2020, jee2019, jee2018, jee2017, jee2016, jee2015, jee2014, jee2013, jee2012, jee2011, jee2010, jee2009, jee2008, jee2007, jee2006, jee2005, jee2004, jee2003, jee2002, jee2001, neet2026 ,neet2025 , neet2024, neet2023, neet2022, neet2021, neet2020, neet2019, neet2018, neet2017, neet2016, neet2015, neet2014, neet2013, neet2012, neet2011, neet2010, neet2009, neet2008, neet2007, neet2006, neet2005, neet2004, neet2003, neet2002, neet2001, gujcet-2014, gujcet,

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