Heat is supplied to a substance in solid state at a constant rate. Its temperature varies with time as shown in figure. Match the following two columns.

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Solution

Slope of $a b$ - none of these
Length of line $b c$ - directly proportional to mass; involves latent heat of fusion i.e. equal to $m L_{f}$
Solid + Liquid state - present in $b c$ , option is none of these
only liquid state - present in $c d$ as at C whole solid melts and $c d$ shows continuous increase in temperature.

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Heat is supplied to a substance in solid state at a constant rate. Its temperature varies with time as shown in figure. Match the following two columns.

Slope of ab - none of theseLength of line bc - directly proportional to mass; involves latent heat of fusion i.e. equal to mLfSolid + Liquid state - present in bc, option is none of theseonly liquid state - present in cd as at C whole solid melts and cd shows continuous increase in temperature.