A cup of coffee cools from 90^° C to 80^° C in t minutes when the… | JEE Main 2025 Physics PYQ

MCQMediumJEE Main 2025 · 29 January, Shift 2Heat Transfer (Conduction, Convection, Radiation)

A cup of coffee cools from $90^\circ C$ to $80^\circ C$ in $t$ minutes when the room temperature is $20^\circ C$ . The time taken by the similar cup of coffee to cool from $80^\circ C$ to $60^\circ C$ at the same room temperature is:

A
$\frac{13}{5} t$
B
$\frac{10}{13} t$
C
$\frac{13}{10} t$
D
$\frac{5}{13} t$

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