Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
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 [...]
A black body at 1500 K emits maximum energy of wavelength 20000 A. If sun emits maximum energy of wavelength 5500 A, what would be the temperature of sun ?
25
Oct
A black body at 1500 K emits maximum energy of wavelength 20000 A. If sun emits maximum energy of wavelength 5500 A, what would be the temperature of sun ? A black body at 1500 K emits maximum energy of wavelength 20000 A. If sun emits maximum energy of wavelength 5500 A what would be [...]
A body emits maximum energy at 4253 A and the same body at some other temperature emits maximum energy at 2342 A. Find the ratio of the maximum energy radiated by the body
25
Oct
A body emits maximum energy at 4253 A and the same body at some other temperature emits maximum energy at 2342 A. Find the ratio of the maximum energy radiated by the body A body emits maximum energy at 4253 A and the same body at some other temperature emits maximum energy at 2342 A. [...]
A spherical ball of radius 1 cm coated with a metal having emissivity 0.3 is maintained at 1000 K temperature and suspended in a vacuum chamber whose walls are maintained at
25
Oct
A spherical ball of radius 1 cm coated with a metal having emissivity 0.3 is maintained at 1000 K temperature and suspended in a vacuum chamber whose walls are maintained at A spherical ball of radius 1 cm coated with a metal having emissivity 0.3 is maintained at 1000 K temperature and suspended in a [...]
A cube and a sphere of equal edge and radius, made of the same substance are allowed to cool under identical conditions. Determine which of the two will cool at a faster rate.
25
Oct
A cube and a sphere of equal edge and radius, made of the same substance are allowed to cool under identical conditions. Determine which of the two will cool at a faster rate. A cube and a sphere of equal edge and radius made of the same substance are allowed to cool under identical conditions. [...]