Photoelectric EffectHard
Question
A big drop of radius R is formed by 729 small drops of water radius r, then the radius of each small drop will be;
Options
A.

B.

C.

D.

Solution
Equating volume in both cases,
πR3 = 729 ×
πr3
⇒ r3 =
⇒ r =
πR3 = 729 ×
πr3⇒ r3 =

⇒ r =

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