Question

it is a to burst inflated balloon we can needed and by a finger why?​

Answer 1

It is much easier to burst an inflated balloon with a needle than by a finger because:

i. Pressure is inversely proportional to the area of cross section.

ii. Hence, smaller the area, larger will be the pressure.

iii. Needle has a smaller area of contact compared to the finger.

iv. Thus, needle will exert more pressure on the balloon.

v. Larger pressure by needle burst an inflated balloon.

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