A black body at $1227\,^oC$ emits radiations with maximum intensity at a wavelength of $5000\,\mathop A\limits^o $ . If the temperature of the body is increased by $1000\,^oC,$ the maximum intensity will be at ....... $\mathop A\limits^o $
A black body at $1227\,^oC$ emits radiations with maximum intensity at a wavelength of $5000\,\mathop A\limits^o $ . If the temperature of the body is increased by $1000\,^oC,$ the maximum intensity will be at ....... $\mathop A\limits^o $
- A
$4000$
- B
$5000$
- C
$6000$
- D
$3000$
Similar Questions
A body cools from a temperature $60\,^oC$ to $40\,^oC$ in $10$ minutes. The room temperature is $20\,^oC$ . Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next $10$ minutes will be......... $^oC$
A body cools from a temperature $60\,^oC$ to $40\,^oC$ in $10$ minutes. The room temperature is $20\,^oC$ . Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next $10$ minutes will be......... $^oC$
Assuming the sun to be a spherical body of radius $R$ at a temperature of $TK$ , evaluate the total radiant power, incident on the earth, at a distance $r$ from the sun, is (Where $r_0$ is the radius of the earth and $\sigma $ is Stefan s constant.)
Assuming the sun to be a spherical body of radius $R$ at a temperature of $TK$ , evaluate the total radiant power, incident on the earth, at a distance $r$ from the sun, is (Where $r_0$ is the radius of the earth and $\sigma $ is Stefan s constant.)
Newton's law of cooling is used in laboratory for the determination of the ...........
Newton's law of cooling is used in laboratory for the determination of the ...........
A spherical body of emissitivity $e = 0.6$ placed inside a perfect black body is maintained at temperature $T$, then the energy radiated per second will be
A spherical body of emissitivity $e = 0.6$ placed inside a perfect black body is maintained at temperature $T$, then the energy radiated per second will be
Three rods $A, B,$ and $C$ of thermal conductivities $K, 2K$ and $4K$ and equal, cross-sectional areas and lengths $2l, l$ and $l$ respectively are connected as shown in the figure. If the ends of the rods are maintained at temperatures $100\ ^oC, 50\ ^oC,$ and $0\ ^oC$ respectively, then the temperature $\theta$ of the junction is
Three rods $A, B,$ and $C$ of thermal conductivities $K, 2K$ and $4K$ and equal, cross-sectional areas and lengths $2l, l$ and $l$ respectively are connected as shown in the figure. If the ends of the rods are maintained at temperatures $100\ ^oC, 50\ ^oC,$ and $0\ ^oC$ respectively, then the temperature $\theta$ of the junction is