Chapter 2: Problem 30
Match the entries given in column \(A\) with the appropriate ones in column \(\mathrm{B}\).
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Chapter 2: Problem 30
Match the entries given in column \(A\) with the appropriate ones in column \(\mathrm{B}\).
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The motion of molecules in a solid is an example for _ motion.
The distance between two stations is \(20 \mathrm{~km}\). If a train moves with a constant speed of \(60 \mathrm{~km} \mathrm{~h}^{-1}\), then the time taken by the train to reach the next station is (1) 2 hour (2) 20 minute (3) 20 second (4) 40 minute
Explain in detail about the different kinds of motion.
The ratio of unit of acceleration and velocity gives unit of the physical quantity _ (1) time (2) frequency (3) amplitude (4) speed
Choose the correct statement (s). (1) Speed and velocity both have same units. (2) If a body has a speed of \(50 \mathrm{~m} \mathrm{~s}^{-1}\) in a straight line path, then its velocity is \(180 \mathrm{~km} \mathrm{~h}^{-1}\) (3) Speed of a vehicle is measured by a device called speedometer. (4) All the above
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