Physics Test - ...

In a compound microscope, the objective and the eyepiece have focal lengths of \(5\) cm and \(9.5\) cm, respectively, and both are kept at a distance of \(20\) cm. If the final image is formed at the least distance of \(25\) cm from the eyepiece, find the total magnification.

In stopping potential (V) photo current (I) graph, if \(\mathrm{V}_{2}>\mathrm{V}_{1}\), then compare the wavelengths of incident radiations:

If simple harmonic motion is represented by\(x=A \cos (\omega t+\varphi)\) then\(' \varphi^{\prime}\) is _____________.

In two single turn circular loop of wire have radius \(20 \mathrm{~cm}\) and \(2 \mathrm{~cm}\). The loops lies in the same plane and are concentric. Find the mutual inductance of the pair is:

Which of the following is not a fundamental unit?

Which theorem states that “If a particle under the simultaneous action of three forces is in equilibrium, then each force has a constant ratio with the sine of the angle between the other two forces”?

In gases of monoatomic molecules, find the ratio of the two specific heat of gases \(\frac{C_{p}}{C_{v}}\).

A plane electromagnetic wave of frequency \(35 \mathrm{MHz}\) travels in free space along the X-direction. At a particular point (in space and time) \(\overrightarrow{\mathrm{E}}=9.6 \hat{\mathrm{j}} \mathrm{V} / \mathrm{m}\). The value of magnetic field at this point is: