Q. No.2: Answer the following questions. i. Define physics.ii. Define optics.iii. What do you know about physical quantities?iv. Write base units.v. What are prefixes?vi. What is least count of Vernier callipers?vii. Define nuclear physicsviii. What is random motion?ix. Define displacement.x. What is uniform speed?xi. What is heat energy?xii. What do you know about efficiency of… Continue reading Previous paper class 9th(Physics)
Tag: translatory motion
Previous paper class 9th(Physics)
Q # 2: Answer these following short questions: /24I: Define base and derived quantities?II: What is rest and Motion explain with the help of example?III: Differentiate between scalars and vectors quantities with the help of defines?IV: what do you know about significant figure?V; Explain speed time graph?VI: A car starts from rest its velocity 20m/s… Continue reading Previous paper class 9th(Physics)