Physics Past Questions and Answers

If ray travelling in air is incident on a transparent medium as shown in the diagram, the refractive index of the medium is given as

In the diagram above , the current I is

The diagram above shows two capacitors P and Q of capacitance 2μF and 4μF respectively connected to a d.c source. The ratio of energy stored in P to Q is

The diagram above shows the capacitors C₁, C₂ and C₃ 2μF, 6μF and 3μF respectively. The potential difference across C₁, C₂ and C₃ respectively are

The diagram above shows a closed side 0.5m in a uniform electric field E in the direction shown by the arrows. What is the flux Φ for the box?