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A wire elongates by 1.0 mm when a load W...

A wire elongates by 1.0 mm when a load W is hanged from it. If this wire goes over a pulley and two weights W each are hung at the two ends the elongation of the wire will be

A

0.5 m

B

1.0 mn

C

2.0 mn

D

4.0 mm

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HC VERMA ENGLISH-SOME MECHANICAL PROPERTIES OF MATTER-Objective-1
  1. A wire can sustain the weight of 20 kg before breaking. If the wire is...

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  2. Two wires A and B are made of same material. The wire A has a length l...

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  3. A wire elongates by 1.0 mm when a load W is hanged from it. If this wi...

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  4. A heavy uniform rod is hanging vertically from a fixed support. It is ...

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  5. When metal wire is stretched by a load the fractional change in its vo...

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  6. The length of a metal wire is l1 when the tension in it is T1 and is l...

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  7. A heavy mass is attached to a thin wire and is whirled in a vertical c...

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  8. When a metal wire elongates by hanging a load on it, the gravitational...

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  9. By a surface of a liquid we mean

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  10. An ice cube is suspended in a vacuum in gravity free hall. As the ice...

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  11. When water droplets merge to form a bigger drop

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  12. The dimension ML^-1T^-2 can correspond to

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  13. Air is pushed into a soap bubble of radius r to double its radius. If ...

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  14. If more air is pushed in a soap bubble the pressure in it

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  15. If two soap bubbles of different radii are connected by a tube

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  16. Figure shows a capillary tube of radius r dipped into water. If the a...

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  17. The excess pressure inside a soap bubble is twice the excess pressurre...

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  18. Which of the following graphs may represent the relation between the c...

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  19. Water rises in a vertical capillary tube up to a length of 10 cm. If t...

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  20. A 20 cm long capillary tube is dipped in water. The water rises up to ...

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