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Recent questions tagged thermal radiation
+2
votes
1
answer
Solar radiation emitted by sun resembles that emitted by a ***** body at a temperature of 6000 K.
asked
Apr 2, 2019
in
Physics
by
kratos
irodov
neet
thermal radiation
class-11
jee
thermodynamics
properties of matter
optics
jee mains
bitsat
heat
atomic physics
+3
votes
1
answer
A photon of wavelength λ = 6.0 pm is scattered at right angles by a stationary free electron.
asked
Apr 2, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+2
votes
1
answer
A photon with energy hω = 250 keV is scattered at an angle θ = 120° by a stationary free electron. Find the energy of the scattered photon.
asked
Mar 27, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+2
votes
1
answer
A light of amplitude A and wavelength λ is incident on a metallic surface, then saturation current flows is
asked
Mar 19, 2019
in
Physics
by
kratos
irodov
neet
modern physics
thermal radiation
jee
dual nature of radiation and matter
optics
jee mains
class-12
+1
vote
1
answer
Having collided with a relativistic electron, a photon is deflected through an angle θ = 60° while the electron stops.
asked
Mar 17, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+1
vote
1
answer
In Michelson'* interferometer the yellow sodium line composed of two wavelengths λ1 = 589.0 nm and λ2 = 589.6 nm was used.
asked
Mar 10, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
interference of light
optics
jee mains
+3
votes
1
answer
Assuming the spectral distribution of thermal radiation energy to obey Wien'* formula u (ω, T) = A ω^3 exp (—aω/T),
asked
Feb 26, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+1
vote
1
answer
Which of the following curves represents spectral distribution of energy of ***** body radiation?
asked
Feb 24, 2019
in
Class 12
by
kratos
irodov
neet
thermal radiation
thermal properties of matter
class-11
jee
aiims
optics
jee mains
+1
vote
1
answer
In Column-I, certain events are mentioned and in Column-II wavelengths are mentioned .
asked
Feb 17, 2019
in
JEE
by
kratos
irodov
thermal radiation
the school boy
class-11
jee
optics
class-12
ecosystem
jee mains
moving sources
+2
votes
1
answer
Fig. 5.40 shows the plot of the function y (x) representing a fraction of the total power of thermal radiation
asked
Feb 9, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+1
vote
1
answer
There are two plane mirror with reflecting surfaces facing each other
asked
Feb 3, 2019
in
JEE
by
kratos
irodov
thermal radiation
cbse
electricity
jee
class-10
optics
jee mains
reflection
class-12
+1
vote
1
answer
An X-ray beam of wavelength 10^-10 m falls on a crystal of atomic spacing 2 x 10^-10. The Bragg'* angle for the second order reflection will be
asked
Feb 1, 2019
in
Chemistry
by
kratos
irodov
neet
thermal radiation
class-11
aiims
jee
physical chemistry
optics
class-12
jee mains
crystallography
interference
+2
votes
1
answer
An isotropic point source * of sound emits constant power. Two points A and B separated by a distance r are situated near the source
asked
Jan 27, 2019
in
Class 12
by
kratos
irodov
waves
sound
thermal radiation
neet
class-11
jee
optics
jee mains
geometrical optics
+2
votes
1
answer
Explain the following features of Compton scattering of light by matter: (a) the increase in wavelength Δλ is independent
asked
Jan 19, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+1
vote
1
answer
Transform Planck'* formula for space spectral density uω. of radiation from the variable ω to the variables v (linear frequency) and λ (wavelength).
asked
Jan 18, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+2
votes
1
answer
There are two cavities (Fig. 5.39) with small holes of equal diameters d = 1.0 cm and perfectly reflecting outer surfaces.
asked
Jan 14, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+2
votes
1
answer
The spectral composition of solar radiation is much the same as that of a ***** body whose maximum
asked
Jan 11, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+1
vote
1
answer
The temperature of one of the two heated ***** bodies is T1 = 2500 K. Find the temperature of the other body
asked
Jan 9, 2019
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+2
votes
1
answer
Using Wien'* formula, demonstrate that (a) the most probable radiation frequency ωpr
asked
Dec 25, 2018
in
JEE
by
kratos
irodov
thermal radiation
jee
optics
jee mains
+2
votes
1
answer
A sound source emits two sinusoidal sound waves, both of wavelength λ,
asked
Dec 18, 2018
in
JEE
by
kratos
irodov
waves
thermal radiation
jee
optics
jee mains 2019
jee mains
geometrical optics
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