Gauss Law

Electric Flux The number of electric lines of force, crossing through a given area. It is represented by Φ Gauss Law Total flux of the electric field  E over  any closed surface is equal to 1/ε0 times the net charge enclosed by the surface.   Applications of Gauss Law Filed due to an infinite long straight…

Electric Field

Electric field due to an electric dipole at a point on its axial line Electric field due to an electric dipole at a point on the equatorial line. Electric dipole in a uniform electric field Electric field due to an electric dipole at a point on its axial line AB = electric dipole -q, +q…

Newton’s third law

1. Open http://saitechinfo.com/tiny/quiz 2. Enter the 6-digit game code 558906 , and click “Proceed” 3. Now enter your name and click “Join Game!” 4. Valid for one week. You may request for extension.  

Work, Energy and Power – STD09

Work Work = Force x displacement work done by the force – displacement of body occurs in the direction of force. work done against the force – displacement of body against the direction of force. work is zero when the force acts perpendicular to the desired direction of movement When a work is done by…

Diffraction

Concepts Single slit Seeing the single slit diffraction pattern Resolving power of optical instruments The validity of ray optics What is diffraction ? Phenomenon of bending of light at sharp edges. SINGLE SLIT Intensity distribution of  and photograph of fringes due to diffraction at single slit Path difference for diffraction by a single slit LQ…

Doppler effect

Doppler effect is the phenomenon of the apparent change in the frequency of sound due to the relative motion between the source of sound and the observer. Key words: apparent change in frequency relative motion source and observer Cases Both source and observer at rest S = source O = observer SO = the distance…