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A wire can sustain the weight of 20 kg b...

A wire can sustain the weight of 20 kg before breaking. If the wire is cut into two equal parts each part can sustain a weight of

A

10 kg

B

20 kg

C

40 kg

D

80 kg

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HC VERMA-SOME MECHANICAL PROPERTIES OF MATTER-Objective-1
  1. A rope 1 cm in diameter breaks if the tension in it exceeds 500 N. The...

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  2. The breaking stress of a wire depends upon …………. .

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  3. A wire can sustain the weight of 20 kg before breaking. If the wire is...

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

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

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

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

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

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

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

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  11. By a surface of a liquid we mean

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

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  13. When water droplets merge to form a bigger drop

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  14. The dimensions ML^-1T^-2 may correspond to

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  15. Air is pushed into a soap bubble of radius r to double its radius, of ...

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  16. If more air is pushed in a soap bubble, the pressure in it will

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  17. If two soap bubbles of different radii are connected by a tube, then

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

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  19. The excess pressure inside a soap bubble is twice the excess pressure ...

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

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