Physics formulas for 10th Density is mass per unit volume Density = mass / volume velocity = displacement / time Force = rate of change of momentum Momentum = mass . velocity Power is rate of work...
What is focal length? Ans: the distance between the pole and focal point. What is the relationship between the radius of curvature and focal length? Ans: R=2f What is myopia? When a person can see...
What is the source of energy? A source of energy is one which provides an adequate amount of energy in a convenient form over a long period. What are the needs for energy? Making food, transportation,...