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2015-02-08T20:36:46+05:30

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Because more area less pressure and less area more pressure

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Because the area of pin is more and pressure is low and head is broad because the more is the pressure n areais lesser
2015-02-08T20:56:40+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The pin sharp but head is broad because if we exerts more pressure then it vil easily penetrate but if we exerts less pres. on a blunt pin then it will not easily penetrate ..

Pointed nip has very small surface area due to which Pres. is required less and in the case of blunt pin surface area is more so.. pres. will be exerted more...


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