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Small drops of water assumes spherical shape due to surface tension. Why do farmers plough the fields before summer?

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Small drops of water assumes spherical shape due to surface tension. Define surface tension.

MAXIMUM PUBLICATION-SAY-2017 QUESTION PAPER-EXERCISE
  1. Small drops of water assumes spherical shape due to surface tension. D...

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  2. Obtain an expression for excess of pressure inside a drop of radius r ...

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  3. Small drops of water assumes spherical shape due to surface tension. W...

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  4. Camot engine is considered as an ideal heat engine. Draw the P-V graph...

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  5. Thermodynamics deals with the concept of heat and the exchange of heat...

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  6. Camot engine is considered as an ideal heat engine. Calculate the effi...

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  7. The branch of physics that was developed to understand and improve th...

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  8. State the parallel axes theorem on moment of inertia.

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  9. Select a TRUE statement from the following

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  10. If the zero of potential energy is at infinity, the total energy of an...

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  11. What is the time period of a second’s pendulum?

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  12. A body having an initial velocity V0 has an acceleration a. Using velo...

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  13. A boy throws a ball of mass 200g with a velocity 20ms^-1 at an angle o...

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  14. Write the work done in each of the following cases as zero positive or...

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  15. Derive an expression for the escape velocity of an object from the sur...

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  16. The terminal velocity of a copper ball of radius 2mm falling through a...

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  17. Free fall is a uniformly accelerated motion. Draw the velocity time gr...

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  18. Define uniform acceleration.

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  19. When a shot is fired from a gun,the gun moves in the backward directio...

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  20. A shell of mass 0.020 kg is fired by a gun of mass 100kg. If the muzzl...

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