Which of following material is most suitable for cooking utensil?

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10-2.Transmission of Heat

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Which of the following material is most suitable for cooking utensil?

Low conductivity and low specific heat

High conductivity and low specific heat

Low conductivity and high specific heat

High conductivity and high specific heat

Solution

(b)

For cooking high conductivity and low specific heat because we do not want to waste heat energy in heating up the vessel it self also we want the vessel to absorb as much as heat is available.

Standard 11

Physics

If the temperature of the sun were to increase from $T$ to $2T$ and its radius from $R$ to $2R$, then the ratio of the radiant energy received on earth to what it was previously, will be

normal

The plots of intensity versus wavelength for three black bodies at temperature $T_1$, $T_2$ and $T_3$ respectively are as shown. Their temperatures are such that

normal

Two plates of same thickness of coefficients of thermal conductivities $K_1$ and $K_2$ and areas of cross section $A_1$ and $A_2$ are connected as shown. The effective coefficient of thermal conductivity $K$.

normal

Hot water cools from $60\,^oC$ to $50\,^oC$ in the first $10\, min$ and to $42\,^oC$ in the next $10\, min$. The temperature of the surrounding is …….. $^oC$

normal

If the temperature of the sun were to increase from $T$ to $2T$ and its radius from $R$ to $2R$, then the ratio of the radiant energy received on earth to what it was previously will be

normal

Which of the following material is most suitable for cooking utensil?

Solution

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