Questions
When a metal sphere is heated, its volume increases by 50c.c and its surface area increases by 25cm2. Its initial radius is
detailed solution
Correct option is C
ΔA=AβΔt=25ΔV=VγΔt=504πr22α43πr33α=12r=4cmTalk to our academic expert!
Similar Questions
A vessel having coefficient of cubical expansion contains liquid Of coefficient of real expansion rR up to certain level. When Vessel
Is heated, match column I and column II.
| Column - I | Column - II | ||
| a | p | liquid level rises continuously from beginning | |
| b | q | liquid level falls continuously from beginning | |
| c | r | liquid level remains same | |
| d | s | liquid level first falls and then rises |
| a | b | c | d | |
| 1 | s | r | q | p |
| 2 | s | r | p | q |
| 3 | q | r | s | p |
| 4 | r | q | p | s |
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