House of Physics

Q # 1. Explain what do you know about the term `Viscosity'? Ans. The term viscosity is used for the degree of in…

Q # 1. Define the terms (i) Unit Vector (ii) Position Vector (iii) Component of a Vector. Unit Vector A vector having t…

Q # 1.Why is the average velocity of the molecules in a gas zero but the average of the square of velocities is not zer…

Q # 1. Explain the difference between tangential velocity and the angular velocity. If one of these is given for a whee…

Q # 1. A person holds a bag of groceries while standing still, talking to a friend. A car is stationary with the engine…

Q # 1. What is the difference between uniform and variable velocity? From the explanation of variable velocity, define …

Q # 1. Name several repetitive phenomenon occurring in nature which can serve as reasonable time standards.    Ans. Any…