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Concept of Average Speed: LCM of 100, 200, 300 and 400 = 1200 Now, Average Speed = Total distance travelled/Total time taken = (1200 ×4)/(1200/100+1200/200+1200/300+1200/400) = (1200 ×4)/25= 192 kmph
What characteristic makes metals good conductors of electricity?
In the atmosphere ultraviolet rays are absorbed by –
Which of the following statements about magnetic field lines is correct?
During __________ motion of an object along a straight line, the change in velocity of the object for any time interval is zero.
What is the SI unit for measuring speed?
What is the SI unit of power?
What type of image is always formed by a convex mirror?
The hair of shaving brush clings together when removed from water due to –
The Mud festival ‘Chikhal Kalo’ is celebrated in which state?
How does an earphone convert electrical signals into sound?
