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Mechanical Properties of Solids

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  1. The bulk modulus of a spherical object is 'B'. If it is subjected to uniform pressure 'p', the fractional decrease in radius is
    1. B
      3p
    2. 3p
      B
    3. p
      3B
    4. p
      B
Correct Option: C

Bulk modulus is given by

B =  
P
AV
V

Or
ΔV
 =
P
VB

3
ΔR
 =
P
RB

(here, = ΔR/R fractional decreases in radius)
⇒
ΔR
 =
P
R3B


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