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(a) Define the unit of current. (b) Ho...

(a) Define the unit of current.
(b) How do we see distant and closer objects?

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SURA PUBLICATION-SELF-EVALUATION 7 MARKS-ANSWER ALL THE QUESTIONS (SCIENCE)
  1. (a) Define the unit of current. (b) How do we see distant and closer...

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  2. Two bulbs are having the ratings as 60 W, 220 V and 40 W, 220 V respec...

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  3. Calculate the coefficient of cubical expansion of a zinc bar whose vol...

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  4. A source producing a sound of frequency 500 Hz is moving towards is li...

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  5. Calculate the number of molecules in 54 gm of H(2)O?

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  6. For a person with hypermeteropia, the near point has moved to 1.5 m. c...

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  7. Find the mass of potassium chloride would be needed to form a saturate...

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  8. Calculate the pH of 1xx10^(-4) molar solution of NaOH.

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  9. Identily A. B, C, and D from the following nuclear reactions. (i) ""...

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  10. Calculate the velocity of a moving body of mass 5 kg whose linear mome...

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  11. Find the mass of 2.5 mole of oxygen atom .

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  12. When an object is placed at 25 cm from a concave lens, a virtual image...

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  13. Calculate the current and the resistance of 100W, 200V electric bulb i...

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  14. Find the speed of sound in air at 23^(@)C. (consider the speed of soun...

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  15. A person with myopia can see objects plaecd at a distance of 4 m. if h...

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  16. The potential difference between two conductor is 110 V. How much work...

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  17. A radon specimen emits radiation of 3.7xx10^(3)GB q pe second. Convert...

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  18. At what speed should a source of sound move away from a stationary obs...

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  19. A 110 V light bulb takes 0.9 A current and operates 12h/day. Determine...

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  20. Calculate the % of each element in calcium carbonate. (Atomic mass: C-...

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  21. A door is pusehd, at a point whose distance from the hinges is 90 cm, ...

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