Physics Test - ...

Henry’s law is not applicable if:

Which of the following obeys inverse square law?

The charge on the metallic sphere of radius R is Q. The electric field intensity at a distance r from the centre of the sphere is E. If the charge on the sphere is doubled, the electric field intensity at a distance 2r will be: (R < r)

The reflecting surface is given by \(\mathrm{y}=\frac{10 \mathrm{~L}}{\pi} \sin \frac{\pi \mathrm{x}}{5 \mathrm{~L}}\). The co-ordinates of the point where a horizontal ray becomes vertical after reflection is:

Auto reduction process is used in the extraction of:

An electron is placed in an electric field of intensity \(10^{4}\) Newton per Coulomb. The electric force working on the electron is:

To demonstrate the phenomenon of interference we require two sources which emit radiation of:

For CE transistor amplifier, the audio signal voltage across the collector resistance of \(2 \mathrm{k} \Omega\) is \(4 \mathrm{~V}\). If the current amplification factor of the transistor is 100 and the base resistance is \(1 \mathrm{k} \Omega\), then the input signal voltage is:

For the logic circuit shown, the truth table is: