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Find out the elongation in block . If ma...

Find out the elongation in block . If mass, area of cross`-` section and young modulus of block are `m,A `and `y` respectively.

A

`(Fl)/(AY)`

B

`(Fl)/(2AY)`

C

`(Fl)/(3AY)`

D

cannot extend

Text Solution

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The correct Answer is:
B
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ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 2 (One or more than one correct answer)
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  8. When water rises in a capillary tube of radius r to height h, then its...

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  10. A capillary of the shape as shown is dipped in a liquid. Contact angle...

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  11. The spring balance A reads 2 kg with a block in suspended from it. A b...

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  14. A small ball of density rho is immersed in a liquid of density sigma(s...

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  15. A solid uniform ball having volume V and density rho floats at the int...

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  16. A sperical ball of radius r and relative density 0.5 is floating in eq...

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  17. Three blocks, labeled A, B and C are floating in water as shown in the...

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  18. The cylindrical tube of a spray pump has radius R, one end of which ha...

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  19. A sylindrical vessel filled with water is released on an inclined surf...

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