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State whether the following statements a...

State whether the following statements are true or false :
The time-period of a given pendulum is not constant.

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LAKHMIR SINGH & MANJIT KAUR-MOTION AND TIME-EXERCISE
  1. State whether the following statements are true or false : Distances...

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  2. State whether the following statements are true or false : The basic...

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  3. State whether the following statements are true or false : The time-...

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  4. Name two types of graphs other than line graphs.

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  5. Which physical quantity was measured by using sundial in ancient times...

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  6. Introduction And Standard Unit Of Measurement

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  7. Name three units of time used in everyday life.

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  8. how many seconds are there in one hour ?

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  9. Name two devices which were used for measuring time in ancient times b...

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  10. Name the device whose periodic motion was used for making clocks till ...

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  11. Name two natural units of time which were used for measuring time in o...

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  12. What name is given to the metallic ball of a simple pendulum ?

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  13. The motion of a simple pendulum is

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  14. Name the material which is used for measuring time in electronic clock...

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  15. Which of the following time measuring devices is most precise

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  16. What is the smallest time interval which can be measured accurately : ...

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  17. What is the smallest time interval which can be measured accurately : ...

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  18. Which of the two is a bigger unit of time microsecond or nanosecond ?

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  19. A pendulum clock becomes

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  20. Which of the two requires an electric cell for its working : a quartz ...

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