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While measuring the diameter of a sphere...

While measuring the diameter of a sphere using a vernier calipers the main scale reading was found to be p while the vernier coinciding division was q. If the least count of the instrument is r, then the radius of the sphere is given by the expression ________.

A

p+q+r

B

`(qr+p)/(2)`

C

p+qr

D

`(pr+q)/(2)`

Text Solution

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The correct Answer is:
B
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PEARSON IIT JEE FOUNDATION-MEASUREMENTS-Level 1 (choose the correct option)
  1. Which among the following physical quantities does not posses a unit?

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  2. Which of the following is not a derived quantity?

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  3. While measuring the diameter of a sphere using a vernier calipers the ...

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  4. Which of the following equations is are true with reference to a verni...

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  5. The following information is given in respect of a vernier calipers. ...

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  6. To determine the diameter of a rod a student wound a thread 5 times ro...

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  7. In a vernier calipers 1 M.S.D = 0.1 cm and the least count is 0.05 mm ...

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  8. Which of the following is true about the density of a substance ?

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  9. The main scale reading of a vernier calipers (1 M.S.D. = 1 mm) having ...

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  10. The following information is noted in respect of two vernier calipers ...

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  11. Three cylindrical flasks A, B and C of diameter 50 mm, 75 mm and 100 m...

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  12. R.D of 'x' and 'y' are 3 are and 2 , respectively. Then the density of...

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  13. The initial and final reading of a burette while draining out 50 drops...

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  14. If the ratio of density of ice to that of wood is (9/8) and the relati...

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  15. The least count of the vernier calipers shown in the figure is .

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  16. The zero error of the vernier calipers shown in the figure is .

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  17. Assertion (A): A physical quantity which can be described with both ma...

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  18. A vernier calipers has positive zero error of 0.05 mm. While finding t...

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  19. If there are 'N' number of vernier scale divisions (VSD) and N VSD = (...

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  20. Assertion (A): The masss of 150 m^(3) of iron is greater than the mas...

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