Match the statements in Column I with the results in Column II.
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a
A-qs B-pr C-ps D-pr
b
A-ps B-qs C-pr D-pr
c
A-pr B-pr C-qs D-ps
d
A-ps B-pr C-qs D-pr
answer is D.
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Detailed Solution
(A) mcdTdt=σST4−T04dTdt∝Sm∝4πR2ρ4πR2t∝1thicknessAlso, dTdt∝T4−T04With time temperature of body will decrease, so the rate dTdt will also decrease.(B) V=kQdFor outside point , the charge is assumed to be concentrated at center of bubble. (C) F=ρS v2=ρS2ghA water level falls , h decreases, hence F also decreases. (D) ϕB=0Since, magnetic field lines are neither able to cross curved surface, nor the flat surface. Hence, magnetic flux is zero.