ACOUSTIC PHENOMENA One Shot Numerical Solutions with tricks for NEB Grade 12 Physics

The Doppler effect is the change in frequency or wavelength of a wave for an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842 ____________________________________________________________________________________ DOPPLER EFFECT is included in Grade XII syllabus by NEB. Some of the high school students are still struggling with the concept and the formulas of DOPPLER EFFECT in their college life. Actually, there are 8 different formulas in Doppler Effects. And I know, remembering them with the correct signs before the velocity of source and/or observer in different cases might be sometimes troublesome. Therefore, in this video, the way of remembering or you can say generating those 8 formulas of Doppler Effect in a very simple way is taught. In this video, all the past year questions from the chapter are solved with full explanation. I hope, after watching this video, you will be able to remember or derive any formula of Doppler effect in no time and without any confusion. ________________________________________________________________________________ This video is dedicated to NEB students who are taking NEB exam of National Examination Board. You can support my work by sharing video links with friends and posting some comments. Thank you !! ----------------------------------------------------------------------------------------------------------------------------- FB PAGE LINK : for science meme, notes and NEB updates :   / thepathsala