Subject :NSO Class : Class 6
Which of the following statements are
incorrect?
I. A bag placed below the seat of a moving bus is in motion with respect to the floor of the bus.
II. While measuring length of an object using a metre scale, use the zero-mark even if the ends are worn out.
III. Blinking of eyes is an example of oscillatory motion.
IV. If a body as a whole moves around in a circular path, the motion is known as revolution.
AI, II and IV only
BI, II and III only
CII, III and IV only
DI, III and IV only
Ans 1:
Class : Class 9