1. Question: Define reflection of light. Answer: The phenomenon by which a ray of light changes the direction of propagation when it strikes a boundary between different media through which it cannot...
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...
विद्युत आवेश क्या है आवेश किसी पदार्थ का आंतरिक या नैज गुण है जो पदार्थो के मध्य लगने वाले विद्युत बल के लिए उत्तर दायी होता है। आवेश हमेशा विविक्त रूप में पाया जाता है, जिसका सबसे छोटा मान इलेक्ट्रॉन...
Method of energy propagation, in which disturbance propagates with definite velocity without changing its form, is called a mechanical wave. Energy and momentum propagate by the motion of particles...