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A hot metallic sphere of radius r radiates heat. It’s rate of cooling is
25
Oct
A hot metallic sphere of radius r radiates heat. It’s rate of cooling is A hot metallic sphere of radius r radiates heat. It's rate of cooling is October 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Radius of a conductor increases uniformly from left end to right end as shown in figure. Material of the conductors is isotropic and its curved surface is thermally isolated from surrounding.
25
Oct
Radius of a conductor increases uniformly from left end to right end as shown in figure. Material of the conductors is isotropic and its curved surface is thermally isolated from surrounding. Radius of a conductor increases uniformly from left end to right end as shown in figure. Material of the conductors is isotropic and its [...]
The rates of cooling of two different liquids put in exactly similar calorimeters are kept in identical surroundings are the same if
25
Oct
The rates of cooling of two different liquids put in exactly similar calorimeters are kept in identical surroundings are the same if The rates of cooling of two different liquids put in exactly similar calorimeters are kept in identical surroundings are the same if October 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
The adjoining diagrams shows the spectral energy density distribution E lemda of a black body at two different temperatures. If the areas under the curves are in the ratio 16 : 1, the value
25
Oct
The adjoining diagrams shows the spectral energy density distribution E lemda of a black body at two different temperatures. If the areas under the curves are in the ratio 16 : 1, the value The adjoining diagrams shows the spectral energy density distribution E lemda of a black body at two different temperatures. If the [...]
Which of the following graphs shows the correct variation in intensity of heat radiations by black body and frequency at a fixed temperature ?
25
Oct
Which of the following graphs shows the correct variation in intensity of heat radiations by black body and frequency at a fixed temperature ? Which of the following graphs shows the correct variation in intensity of heat radiations by black body and frequency at a fixed temperature ? October 25, 2020 Category: Uncategorised (JEE Advanced [...]
Shown below are the black body radiation curves at temperatures T1 and T2 (T2 > T1). Which of the following plots is correct ?
25
Oct
Shown below are the black body radiation curves at temperatures T1 and T2 (T2 > T1). Which of the following plots is correct ? Shown below are the black body radiation curves at temperatures T1 and T2 (T2 > T1). Which of the following plots is correct ? October 25, 2020 Category: Uncategorised (JEE Advanced [...]
In the figure, the distribution of energy density of the radiation emitted by a black body at a given temperature is shown. The possible temperature of the black body is
25
Oct
In the figure, the distribution of energy density of the radiation emitted by a black body at a given temperature is shown. The possible temperature of the black body is In the figure the distribution of energy density of the radiation emitted by a black body at a given temperature is shown. The possible temperature [...]
Two identical objects A and B are at temperatures TA and TB respectively. Both objects are placed in a room with perfectly absorbing walls maintained at temperatures T (TA > T > TB).
25
Oct
Two identical objects A and B are at temperatures TA and TB respectively. Both objects are placed in a room with perfectly absorbing walls maintained at temperatures T (TA > T > TB). Two identical objects A and B are at temperatures TA and TB respectively. Both objects are placed in a room with perfectly [...]
If the temperature of the sun becomes twice its present temperature, then (1) radiated energy would be predominantly in infrared (2) radiated energy would be predominantly in
25
Oct
If the temperature of the sun becomes twice its present temperature, then (1) radiated energy would be predominantly in infrared (2) radiated energy would be predominantly in If the temperature of the sun becomes twice its present temperature then (1) radiated energy would be predominantly in infrared (2) radiated energy would be predominantly in October [...]
Two ends of a conducting rod of varying cross-section are maintained at 200 C and 0 c respectively. There are two sections marked in the rod AB and CD of same thickness. In steady state :
25
Oct
Two ends of a conducting rod of varying cross-section are maintained at 200 C and 0 c respectively. There are two sections marked in the rod AB and CD of same thickness. In steady state : Two ends of a conducting rod of varying cross-section are maintained at 200 C and 0 c respectively. There [...]