The temperature of body is increased from $27\,^oC$ to $127\,^oC$ the radiation emitted by it increases by a factor of
The temperature of body is increased from $27\,^oC$ to $127\,^oC$ the radiation emitted by it increases by a factor of
- A
$\frac {256}{81}$
- B
$\frac {15}{9}$
- C
$\frac {4}{5}$
- D
$\frac {12}{27}$
Similar Questions
A cup of tea cools from $80\,^oC$ to $60\,^oC$ in one minute. The ambient temperature is $30\,^oC$. In cooling from $60\,^oC$ to $50\,^oC$. It will take ....... $\sec$
A cup of tea cools from $80\,^oC$ to $60\,^oC$ in one minute. The ambient temperature is $30\,^oC$. In cooling from $60\,^oC$ to $50\,^oC$. It will take ....... $\sec$
A sphere and a cube of same material and same volume are heated upto same temperature and allowed to cool in the same surroundings. The ratio of the amounts of radiations emitted will be
A sphere and a cube of same material and same volume are heated upto same temperature and allowed to cool in the same surroundings. The ratio of the amounts of radiations emitted will be
Two diagonally opposite comers of a square made of a four thin rods of same material, same dimensions are at temperature $40^{\circ} C$ and $10^{\circ} C$. If only heat conduction takes place, then the temperature difference between other two corners will be .......... $^{\circ} C$
Two diagonally opposite comers of a square made of a four thin rods of same material, same dimensions are at temperature $40^{\circ} C$ and $10^{\circ} C$. If only heat conduction takes place, then the temperature difference between other two corners will be .......... $^{\circ} C$
A liquid in a beaker has temperature $\theta \left( t \right)$ at time $t$ and ${\theta _0}$ is temperature of surroundings, then according to Newton's law of cooling the correct graph between loge ${\log _e}(\theta - {\theta _0})$ and $t$ is
A liquid in a beaker has temperature $\theta \left( t \right)$ at time $t$ and ${\theta _0}$ is temperature of surroundings, then according to Newton's law of cooling the correct graph between loge ${\log _e}(\theta - {\theta _0})$ and $t$ is
The distribution of relative intensity $I(\lambda )$ of blackbody radiation from a solid object versus the wavelength $\lambda $ is shown in the figure . If the Wien displacement law Constant is $2.9 \times 10^{-3}\ mK$ , what is the approximate temperature of the object ........ $K$.
The distribution of relative intensity $I(\lambda )$ of blackbody radiation from a solid object versus the wavelength $\lambda $ is shown in the figure . If the Wien displacement law Constant is $2.9 \times 10^{-3}\ mK$ , what is the approximate temperature of the object ........ $K$.