CBSE Class 12-science Answered
Sir
Pl questions no-5
Asked by shobhit | 26 May, 2018, 06:26: PM
Expert Answer
Bulk modulus K is defined as : K = Pressure / (ΔV/V) .......................(1)
where ΔV is change in volume and V is volume
if R is radius of sphere, V = (4/3)πR3
under compression, if R is getting changed to R-δR, then change in volume V-ΔV is given by
(V-ΔV) = (4/3)π(R-δR)3 = (4/3)πR3 {1 - (δR/R)3 } = (4/3)πR3 {1 - (3δR/R) } ( neglecting higher order of (δR/R) )
(V-ΔV) = V{ 1 - (ΔV/V) } = (4/3)πR3 {1 - (3δR/R) }
hence (ΔV/V) = (3δR/R)..................(2)
Eqn.(1) is rewritten using eqn.(2)
K = [ (mg)/A ] / (3δR/R)
hence δR/R = (mg) / (3AK)
Answered by Thiyagarajan K | 26 May, 2018, 09:13: PM
Concept Videos
CBSE 12-science - Physics
Asked by mailtoanjalip2005 | 16 Mar, 2024, 08:22: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by divyanshsahu109 | 11 Mar, 2024, 05:57: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by am1954077 | 08 Mar, 2024, 04:57: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by himanshurawat5823 | 08 Mar, 2024, 01:24: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by rohandhawaniya17112006 | 06 Mar, 2024, 03:32: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by shivamtkr7767 | 03 Mar, 2024, 12:45: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by sahupranav2006 | 02 Mar, 2024, 03:37: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by rishabhverma895334 | 01 Mar, 2024, 07:24: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by writetoakashyadav | 28 Feb, 2024, 07:41: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by nikstar1456 | 14 Feb, 2024, 01:09: PM
ANSWERED BY EXPERT