If a spring is extended to length $l,$ then according to Hook's law
A$F = kl$
B$F = \frac{k}{l}$
C$F = {k^2}l$
D$F = \frac{{{k^2}}}{l}$
Easy
Download our app for free and get started
A$F = kl$
a (a) $\frac{\text { stress }}{\text { sbrain }}=k=E$
$\frac{F L}{A l}=E$
$\frac{E A}{L}=k$
$F=\frac{E A}{L} \times l$
$F=k l$
Download our app
and get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
The compressibility of water is $4 \times {10^{ - 5}}$ per unit atmospheric pressure. The decrease in volume of $100$ cubic centimeter of water under a pressure of $100$ atmosphere will be ......... $cc$
Two exactly similar wires of steel and copper are stretched by equal forces. If the difference in their elongations is $0.5$ cm, the elongation $(l)$ of each wire is ${Y_s}({\rm{steel}}) = 2.0 \times {10^{11}}\,N/{m^2}$${Y_c}({\rm{copper}}) = 1.2 \times {10^{11}}\,N/{m^2}$
The bulk modulus of a gas is defined as $B=-V d p / d V$. For an adiabatic process the variation of $B$ is proportional to $p^n$. For an ideal gas $n$ is