Within the elastic limit, the corresponding stress is known as

The region between the parallel plates of capacitor is filled with parallel layers of air and paper (of dielectric constant 4). The space between the plates is \(1 \mathrm{~mm}\) and the thickness of paper is \(0.75 \mathrm{~mm}\). The ratio of the voltage across air and paper is

A closed loop lying in the \(X Y\)-plane carries a current. If a uniform magnetic field \(\mathbf{B}\) is present in the region, the force acting on the loop will be zero, if \(\mathbf{B}\) is in

The coefficient of thermal conductivity of copper is 9 times that of steel. In the composite cylindrical bar shown in the figure, what will be the temperature at the junction of copper and steel?

The thickness of a metallic plate is 0.4 cm . The temperature between its two surfaces is \(20^{\circ} \mathrm{C}\). The quantity of heat flowing per second is 50 cal from \(5 \mathrm{~cm}^2\) area. In CGS system, the coefficient of thermal conductivity will be

Which of the given substances \(A, B\) and \(C\) have more specific heat?

The height vertically above the earth's surface at which the acceleration due to gravity becomes \(1 \%\) of its value at the surface is

If \(\alpha, \beta, \gamma\) are the roots of the equation \(x^{3}+p x+q=0\), then the value of the determinant \(\left|\begin{array}{ccc}\alpha & \beta & \gamma \\ \beta & \gamma & \alpha \\ \gamma & \alpha & \beta\end{array}\right|\) is

Total number of isomeric xylenes or dichlorobenzenes or cresols is

Arrangement of following compounds based on their boiling points in the increasing order. \(n\)-butane, 1-butanol, ethoxyethane and 1-propanol will be

Given below are 4 equations showing Molar conductivities at infinite dilution of various electrolytes. Which one of them represents the correct equation?
\(\begin{aligned}
& \left(\Lambda_m^0\right)_{N a B r}-\left(\Lambda_m^0\right)_{N a C l}=\left(\Lambda_m^0\right)_{\mathrm{KCl}}-\left(\Lambda_m^0\right)_{\mathrm{KBr}} \\
& \left(\Lambda_m^0\right)_{\mathrm{HCl}}+\left(\Lambda_m^0\right)_{\mathrm{KOH}}-\left(\Lambda_m^0\right)_{\mathrm{KCl}}=\left(\Lambda_m^0\right)_{\mathrm{H}_2 \mathrm{O}} \\
& \left(\Lambda_m^0\right)_{\mathrm{KBr}}-\left(\Lambda_m^0\right)_{\mathrm{NaBr}}=\left(\Lambda_m^0\right)_{\mathrm{NaBr}}-\left(\Lambda_m^0\right)_{\mathrm{Nal}} \\
& \left(\Lambda_m^0\right)_{N H_4 \mathrm{Cl}}-\left(\Lambda_m^0\right)_{\mathrm{NH}_4 \mathrm{NO}_3}=\left(\Lambda_m^0\right)_{N H_4 \mathrm{Cl}}-\left(\Lambda_m^0\right)_{N H 4 B r}
\end{aligned}\)

If \(n(A)=2\) and \(n(B)=3\) then number of relation from set \(A\) to the set \(B\) is

Every term of a geometric progression is positive, and every term is the sum of the two preceding terms. Then the common ratio of the geometric progression is: