A rubber cord of cross-sectional area 2cm2 has a len... - Solved MCQs & Answer

732PhysicsMedium

A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?

A0.5×10-6 Nm-2

B2×108 Nm-2

C0.2×10-6Nm-2

D5×106 Nm-2

Correct answer

D. 5×106 Nm-2

Explanation

5×106 Nm-2 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

The angular position of cells remains the same for a sample of a crystal. This property is called___________________?

When a body moves in a circle of radius r with linear speed V its centripetal force is_______________?

The deflection for 50 division of galvanometer is decreased to 25 divisions by shunt resistance of 12Ω. Galvanometer resistance is_____________?

The collision between two bodies be elastic if bodies are_________________?

Diffraction effect is____________________?

Irregular flow of fluid is called_______________?