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The acceleration-time (a-t) graph of a p...

The acceleration-time `(a-t)` graph of a particle moving along straight line is as shown in figure. The time at which velocity of particle becomes equal to its initial velocity is

A

2 s

B

4 s

C

4.5 s

D

5.5 s

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AAKASH INSTITUTE ENGLISH-TEST 1-EXERCISE
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  2. If a diaelectric material of dielectric constantepsilonr is completely...

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  3. Two identical electric dipoles of dipole moments p are placed as shown...

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  4. Four point charges each of magnitude Q and mass m are moving on circul...

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  5. Positive charge is uniformly distrubuted with volume charge density rh...

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  6. A wire AMB is placed along y-axis having linear charge density lambda ...

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  7. Two identical point charges are placed at A and B. The potential diffe...

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  8. The magnitude electric potential difference between A and B for a give...

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  9. The uniform electric field is along positive y-axis positive x axis ...

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  10. A short electric dipole having dipole moment overline rho is placed a...

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  11. There are three conducting concentric spherical shells having charges ...

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  12. there are two concentric metallic shells of radii R and 2R, if outer ...

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  13. An uncharged metallic solid sphere of radius R is placed at a distance...

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  14. There are two concentric conducting spherical shells of radii 10 cm an...

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  15. A parallel plate capacitor (not connected with battery) have charge Q0...

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  16. An arrangement of five identical capacitors are shown in given circuit...

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  17. A parallel plate capacitor charged to potential difference V0 . The va...

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  18. The area of cross section of a uniform cylindrical conducting wire is ...

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  19. Which one of the following relations is incorrect ? ( Symbols have the...

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  20. If two conducting wires Aand B of same dimensions have electron densit...

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  21. A current carrying conductor is connected with a cell, after some time...

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