Answer:
As we know that heat given to a substance is given by the formula as

now we know that

now we know that aluminium and water both are of same mass and both are given same amount of heat so the value of Q and m will be same.
So here we can say that change in temperature depends inversely on the specific heat capacity.
So here if more specific heat capacity then there will be less change in temperature.
so we can conclude that since temperature of aluminium increases more so the specific heat capacity of aluminium will be less than that of water.