HSC Science (Computer Science) 12th Board ExamMaharashtra State Board
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# Solution - Calculate the Pressure Inside the Raindrop. - HSC Science (Computer Science) 12th Board Exam - Physics

ConceptSurface Tension

#### Question

A raindrop of diameter 4 mm is about to fall on the ground. Calculate the pressure inside the raindrop. [Surface tension of water T = 0.072 N/m, atmospheric pressure = 1.013 x 105 N/m2 ]

#### Solution

Given:

T = 0072 N/m,

d = 4mm ∴ r = 2 * 10-3 m,

P= 1.013 * 105 N/m2

To find: Pressure inside the raindrop (Pi)

Formula: Pi = Po + 2T/r

Calculation: From formula,

P_i=1.013xx10^5+(2xx0.072)/(2xx10^(-3))

P_i=1.013xx10^5+0.072xx10^3

=1.013xx10^5+0.00072xx10^5

thereforeP_i=1.01372xx10^5Pa

The pressure inside the raindrop is 1.01372 * 105 Pa.

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#### Reference Material

Solution for question: Calculate the Pressure Inside the Raindrop. concept: Surface Tension. For the courses HSC Science (Computer Science), HSC Science (Electronics), HSC Science (General)
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