The Young's modulus of a wire of length L and radius r is Y. If the length is reduced to` L//2` and radius `r//2`. What will be its Young's modulus?

What is the unit of Young's modulus ?

The Young’s modulus of a wire is numerically equal to the stress which will:

What is the length of the radius of the earth?

Define young's modulus and describe a method of measuring its value .

A steel wire of length 4.7 m and cross-sectional area 3.0 xx 10^- 5 m^2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4.0 xx 10^-5 m^2 under a given load. What is the ratio of the Young’s modulus of steel to that of copper?

The radius of sphere is measured with an error of 2% what will be the error in its volume ?

What is the volume of a solid sphere of radius 2R?

A wire of length L and radius r is fixed at one end and a force F applied to the other end produces an extension l. the extension produced in another wire of same material of length 2L and radius 2r by a force 2F is

If arc length of a sector is l and radius of the circle is r. Write the relation among area of the sector A, radius (r) and arc length (l).