What is the condition under which Hooke's law holds goods?

Hook's law defines

What is the condition under which the magnitude of cross product is equal to the dot product ?

Show that the Young.s modulus of the material of a wire is equal to the stress required to double the initial length of the wire. Assume that Hookes law holds good throughout the process.

(i) State Hook's law. (ii) Draw a labelled graph of tensile stress against tensile strain for a metal wire upto the breaking point. Shhow on your graph the region in which Hooke's law is obeyed. What is the significance of the area between the graph and the strain axis withing the Hooke's law region?

The stress strain graph for a metal wire is as shown in the figure. In the graph, the region in which Hooke's law is obeyed, the ultimate strength and fracture are represented by

The conditions under which transpiration would be most rapid are

What are the conditions for an ideal solution which obeys Raoult's law over the entire range of concentration ?

The distance upto which ray optics holds good is called

If a,b,c,d,e are positive numbers, then which of the following holds good

Assertion:- Materials can be stretched even beyond proportionality limit. (point till which Hooke's law is valid is called proportionality limit) Reason:- Elastic forces can be conservative even beyond proportional limit.