Two identical beakers A and B contain equal
volumes of two different liquids at 60°C each
and left to cool down. Liquid in A has density
of 8 × 10
2
kg/m
3
and specific heat of
2000 J kg
–1
K
–1
while liquid in B has density
of 10
3
kg m
–3
and specific heat of
4000 J kg
–1
K
–1
. Which of the following best
describes their temperature versus time graph
schematically? (assume the emissivity of both
the beakers to be the same)