Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoMiscellaneousMedium2 minPYQ_2021

PhysicsMediumsingle choice

Two different metal bodies $A$ and $B$ of equal mass are heated at a uniform rate under similar conditions. The variation of temperature of the bodies is graphically represented as shown in the figure. The ratio of specific heat capacities is:

Options:

Answer:

Solution:

${(\frac{Δ Q}{Δ t})}_{A} = {(\frac{Δ Q}{Δ t})}_{B}$

$m S_{A} {(\frac{Δ T}{Δ t})}_{A} = m S_{B} {(\frac{Δ T}{Δ t})}_{B}$

$\frac{S_{A}}{S_{B}} = \frac{{(\frac{Δ T}{Δ t})}_{A}}{{(\frac{Δ T}{Δ t})}_{B}} = \frac{90 / 6}{120 / 3} = \frac{15}{40} = \frac{3}{8}$

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2021

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