The graph of stress against strain is always

Young's modulus is property of

There are two identical wires with Young's moduli Y1 and Y2 respectively such that Y1> Y2. If they are hung from a rigid support and same weight is applied to them at their free ends then

The bulk modulus of a material of a wire 1m long is B. So the bulk modulus of a 2m long wire of same material will be

A balloon 's volume decreases by 1% when its pressure is increased by 80%. So its Bulk modulus is

If a force of 4 N is applied across a face of a cube whose sides are 2mm each then stress produced is

If a wire breaks just after plastic flow begins then material is

A liquid drop of diameter D breaks into 27 tiny drops. The resultant change in energy is :–

Two soap bubbles each of radius r are touching each other. The radius of curvature of the common surface will be:

A copper ball of radius 'r' travels with a uniform speed 'v' in a viscous fluid. If the ball is changed with another

ball of radius '2r', then new uniform speed will be :–

A sample of metal weights 210 grams in air, 180 grams in water and 120 grams in an unknown liquid. Then:–

16 cm3 of water flows per second through a capillary tube of radius a cm and of length 'l' cm when connected

to a pressure head of h cm of water. If a tube of the same length and radius a/2 cm is connected to the same

pressure head, the quantity of water flowing through the tube per second will be(in cc):–