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Recent questions tagged transfer of heat
+1
vote
1
answer
Assuming the sun to be a spherical body of radius R at a temperature of TK,
asked
Apr 4, 2019
in
JEE
by
kratos
transfer of heat
jee
properties of solids and liquids
jee mains
+1
vote
1
answer
A bar of copper of length 75cm and a bar of length 125cm are joined end to end. Both are of circular cross
asked
Apr 1, 2019
in
JEE
by
kratos
transfer of heat
class-11
jee
+3
votes
1
answer
The temperature of the two outer surfaces of a composite slab, consisting of two materials
asked
Mar 29, 2019
in
Class 12
by
kratos
neet
transfer of heat
jee
properties of matter
properties of solids and liquids
jee mains
+2
votes
1
answer
A long metallic bar is carrying heat from one of its ends to the other end under steady-state.
asked
Mar 23, 2019
in
Class 12
by
kratos
neet
transfer of heat
jee
aiims
moving charges and magnetism
thermodynamics
simple stress and strain
exergy balance equation
+3
votes
1
answer
If the temperature of the sun were to increase from T to 2T and its radius from R to 2R, then the ratio
asked
Mar 22, 2019
in
Class 12
by
kratos
neet
transfer of heat
jee
properties of matter
properties of solids and liquids
jee mains
kinetic theory of gases
+2
votes
1
answer
If a body is heated from 270 C to 9270C then what will be the ratio of energies of radiation emitted?
asked
Mar 19, 2019
in
Class 12
by
kratos
class-12
transfer of heat
class-11
+2
votes
1
answer
1.a body with large reflectivity Is a poor emitter. 2. a brass tumbler feels much colder than a wooden tray
asked
Mar 16, 2019
in
Class 11
by
kratos
thermal properties of matter
transfer of heat
class-11
+1
vote
1
answer
Two spheres of the same material have radii 1m and 4 m and temperatures 4000 K and 2000 K respectively.
asked
Mar 1, 2019
in
Class 12
by
kratos
neet
transfer of heat
aiims
jee
properties of solids and liquids
jee mains
+3
votes
1
answer
Animals curl into a ball when they feel very cold. Why ?
asked
Feb 24, 2019
in
Class 12
by
kratos
neet
thermal properties of matter
transfer of heat
class-11
aiims
+1
vote
1
answer
Why is it hotter at the same distance over the top of the **** than in front of it?
asked
Feb 23, 2019
in
Class 12
by
kratos
neet
transfer of heat
class-11
aiims
jee
kinetic theory
+3
votes
1
answer
Marble tiles feel colder than a carpet though both of them are at the same temperature - give reason.
asked
Feb 15, 2019
in
Class 11
by
kratos
heat and temperature
thermal properties of matter
transfer of heat
class-11
class-7
+1
vote
1
answer
A cylinder of radius R is surrounded by a cylindrical shell of inner radius R and outer radius 2R.
asked
Feb 15, 2019
in
JEE
by
kratos
transfer of heat
class-11
jee
thermodynamics
simple harmonic motion
jee mains
gravitation
heat
+3
votes
1
answer
A body with large reflectivity is a poor emitter a brass tumbler feels much colder than a wooden tray on a chilly day
asked
Feb 14, 2019
in
Class 11
by
kratos
thermal properties of matter
transfer of heat
class-11
+1
vote
0
answers
A brass boiler has a base area of 0.15 m^2 and thickness 1.0 cm. It bolls water at the rate of 6.0 kg/min when placed
asked
Feb 11, 2019
in
Class 11
by
kratos
thermal properties of matter
transfer of heat
class-11
+2
votes
1
answer
A cylinder of radius R made of a material of thermal conductivity K1 is surrounded by a cylindrical shell of inner
asked
Feb 7, 2019
in
JEE
by
kratos
transfer of heat
class-11
jee
thermodynamics
simple harmonic motion
jee mains
gravitation
heat
+3
votes
1
answer
A brass boiler has a base area of 0.15m^2 and thickness 1.0cm. It boils water at the rate of 6kg| min when placed
asked
Feb 6, 2019
in
Class 12
by
kratos
thermal properties of matter
transfer of heat
class-11
class-12
+1
vote
1
answer
A brass boiler has a base of 0.15 m^2 and thickness 1.0 cm. If boils water at the rate of 6.0 kg/min when placed on a gas stove.
asked
Feb 5, 2019
in
Class 11
by
kratos
thermal properties of matter
transfer of heat
class-11
thermodynamics
reversible processes
steady state
+1
vote
1
answer
Which of the following is more close to a ***** body?
asked
Feb 4, 2019
in
Class 12
by
kratos
class-12
transfer of heat
class-11
+1
vote
1
answer
A spherical ***** body with a radius of 12 cm radiates 450 watt power
asked
Jan 29, 2019
in
Class 12
by
kratos
neet
transfer of heat
class-11
aiims
thermodynamics
properties of matter
heat
+3
votes
1
answer
A spherical ***** body with a radius of 12 cm radiates 450 W power at 500 K. If the radius were halved and the temperature doubled,
asked
Jan 25, 2019
in
Class 12
by
kratos
neet
transfer of heat
class-11
thermodynamics
properties of matter
heat
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