Question

Radius of a particular ballon is
4cm at certain height from the
ground.
When brought to ground the
readius decreases 1 cm.
Find the pressure initially? ​

Answer 1

Answer:

plzz write question again

Answer 2

Answer:

FOLLOW THE STEPS AND SOLVE YOUR SUM

Explanation:

R = radius of ballon = 7cm

r = radius of pumped ballon = 14cm

surface area of sphere before inflated / urface area of spherical ballon after inflated

=4×(22/7)×R×R / 4 × (22/7) × r×r

= R×R/r×r

=7×7/14×14

= 49 / 196

= 1:4