![]() (b) The intensity at the central maxima in Young’s double slit experiment is I ˳. (a) Derive an expression for path difference in Young’s double slit experiment and obtain the conditions for constructive and destructive interference at a point on the screen Bohr could now precisely describe the processes of absorption and emission in terms of electronic structure. Determine the intensities of light as observed by the observer at O, when Polaroid P 3 is rotated with respect to P 2 at angles θ = 30° and 60°. The Balmer seriesthe spectral lines in the visible region of hydrogen's emission spectrumcorresponds to electrons relaxing from n3-6 energy levels to the n2 energy level. A monochromatic source S of unpolarized light of intensity I ˳ is kept in front of the polaroid sheet P 1 as shown in figure. (b) Three identical polarized sheets P 1, P 2 and P 3 are oriented so that the pass axis of P 2 and P 3 are inclined at angles of 60°and 90° respectively with the pass axis of P 1. Emission Spectra Electrons move rapidly around the nucleus in energy shells Heat or electricity can be used to excite an electron to a higher main energy. (a) Why does unpolarized light from a source show a variation in intensity when viewed through a Polaroid which is rotated? Show with the help of a diagram, how unpolarized light from sun gets linearly polarized by scattering. (b) Obtain an expression for the work done to dissociate the system of three charges placed at the vertices of an equilateral triangle of side ‘a’ as shown below. (a) Explain why, for any charge configuration, the equipotential surface through a point is normal to the electric field at that point.ĭraw a sketch of equipotential surfaces due to a single charge (-q), depicting the electric field lines due to the charge. ![]() If the separation between the plates of the capacitor is now doubled, how will the following change? it is then disconnected from the battery. (b) A capacitor of capacitance C is charged fully by connecting it to a battery of emf, E. How does polarized dielectric modify the original external field? (a) Distinguish, with a help of a suitable diagram, the difference in the behavior of a conductor and a dielectric placed in an external electric field.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |