Physics · II PU / Class 12
Quick diagnostic test
12 questions across 4 concepts. No sign-up, no time limit.
Why these show up together
When connected by a conducting wire, both spheres reach an identical electric potential. By expressing the potential in terms of surface charge density and radius, the ratio of their surface charge densities is shown to be inversely proportional to their radii.
Why these show up together
The student synthesizes Snell's law with the geometry of reflection or recognizes Brewster's condition where $\tan(i_p) = \mu = \sqrt{3}$. Using this relationship, the angle of refraction is found, confirming that the reflected and refracted rays are mutually perpendicular.