As we know, exam time is most difficult for the student whether they study correctly or not. This time is also required mental preparation which comes through more than ten times revision and then memories...
(i) What is the relation between critical angle and refractive index of a material ? (ii) Does critical angle depend on the colour of light ? Explain. ANSWER (i) Refractive index = 1/sin C where C...
Dear students/Parents, We can enhance yours exam presentation skills by getting and encouraging them in thier psycology way.If interested can contact for maths or science from 9,10,11 and 12th[students...
since tangent at any point on the field lines gives the direction of field(electric or magnetic field) so if two field lines intersects then at the intersection point we can draw two tangents from one...