A small plane area is rotated in an electric field. In which orientation of the area is the flux of electric field through the area maximum? In which orientation is it zero? Solution: The flux of an electric field E through a surface area dS is given by, dφ = E dS , where dφ … Read more
You are walking along seashore and a mild wind is blowing. Is the motion of air a wave motion? Solution: No, in wave motion there is no actual transfer of matter but transfer of energy between the points where as when wind blows air particles moves with it. The radio and TV programmes, telecast at … Read more
1. Is it always true that the molecules of a dense liquid are heavier than the molecules of a lighter liquid ? Solution: Density is defined as mass per unit volume. It tells how closely packed are the molecules inside an object. When molecules are tightly packed, we say that the object is dense; when … Read more
1. A person goes to bed at sharp 10:00 pm every day. Is it an example of periodic motion? If yes, what is the time period? If no, why? Solution: No. As motion is a change in position of an object with respect to time or a reference point, it is not an example of … Read more
Can two particles be in equilibrium under the action of their mutual gravitational force? Can three particles be? Can one of the three particles be? Solution: 1st Part: A particle will be in equilibrium when the net force acting on it is equal to zero. Two particles under the action of their mutual gravitational force … Read more
Short Answer Type Questions
Short Answer Type Questions
Short Answer Type Questions
Short Answer Type Questions
Short Answer Type Questions
Short Answer Type Questions
Short answer type questions: Exercise:
