I, III, II
III, II, I
II, I,III
II, III , I
I, II and Ill
I, II and IV
I, Ill and IV
II, II II and IV
Both II and Ill
Both I and II
Both I and III
I, II and Ill
128
28
1/128
32
increases with temperature
remains constant
decreases with temperature
decreases inversely with temperature
`R_T = R_0 (1+ alpha^2 t )`
`R_t = R_0 (1+ alpha t )`
`R_t= R_0 (1+ alpha t )^2`
`R_t = R_0 (1- alpha t )`
18000 K
68500 K
7000 k
8000 K
Wien's displacement law
Rayleigh-Jeans law
Faraday's law
Maxwell-Boltzmann law
Conduction only
Convection only
Radiation
Both conduction and convection
our body radiates more heat in air
fan supplies cool air
conductivity of air increase
our perspiration evaporates rapidly
l = 2 m , r = 10 cm
l = 2 m, r = 5 cm
l =1m, r = 5 cm
l =1 m, r = 10 cm
`2.33^o C`
`0.233^o C`
`23.3^o C`
`233^o C`
radiated energy would be predominantly in ultraviolet region
radiated energy would be predominantly in infrared region
radiated energy would be predominantly in X-ray region
radiated energy would become twice the present radiated energy
blue
green
red
yellow
conduction
radiation and convection
convection
Both conduction and convection
white
Red
Blue
Black
60 cal
80 cal
800 cal
8000 cal
decrease
remain same
increase
depend on size
23.64%
50%
20%
25%
1944.7%
0.21447%
200%
21.4%
decreases
increases
remains constan
None of these
depends upon path
does not depend upon path
corresponds to an isothermal process
corresponds to c n adiabatic process
`1/(gamma +1 )`
`1/(gamma )`
`gamma -1`
`gamma`
only volume
only temperature
only pressure
Both pressure as well as temperature
conduction alone
convection alone
radiation alone
Both convection and radiation
reflects every colour
does not reflect any colour
absorbs black colour
reflects black colour
reflects every colour
does not reflect any colour
absorbs black colour
reflects black colour
I, III, II
III, II, I
II, I, III
II, III, I
I, II and Ill
I, II and IV
I, Ill and IV
II, III and IV
Both II and Ill
Both I and II
Both I and III
I, II and Ill
128
28
1/128
32
increases with temperature
remains constant
decreases with temperature
decreases inversely with temperature
`R_t = R_0 (1 + alpha t)`
`R_t = R_0 ( 1 + alpha t )`
`R_t = R_0 ( 1 + alphat)^2`
`R_t = R_0 ( 1 - alpha t ) `
18000 K
68500 K
7000 K
8000 K
Wien's displacement law
Rayleigh-Jeans law
Faraday's law
Maxwell-Boltzmann law
Conduction only
Convection only
Radiation
Both conduction and convection
Conduction only
Convection only
Radiation
Both conduction and convection
our body radiates more heat in air
fan supplies cool air
conductivity of air increase
our perspiration evaporates rapidly
1 : 2
2 : 8
8 : 2
2 : 1
l = 2 m,r = 10 cm
l = 2m, r = 5 cm
l =1 m, r = 5 cm
l =1m, r = 10 cm
2.33°C
0.233°C
23.3°C
233°C
radiated energy would be predominantly in ultraviolet region
radiated energy would be predominantly in infrared region
radiated energy would be predominantly in X-ray region
radiated energy would become twice the present radiated energy
blue
green
red
yellow
conduction
radiation and convection
convection
Both conduction and convection
White
Red
Blue
Black
60 cal
80 cal
800 cal
8000 cal
decrease
remain same
increase
depend on size
`633.3 cm^3`
`6.33cm^3`
`76 crn^3`
`19 cm^3`
23.64%
50%
20%
25%
1944.7%
0.21447%
200%
21.4%
50%
25%
30%
100%
decreases
increses
Remains constant
None of these
depends upon path
does not depend upon path
corresponds to an isothermal process
corresponds to an adiabatic process
`1/(gamma +1 )`
`1/gamma`
`gamma -1`
`gamma`
only volume
only temperature
only pressure
Both pressure as well as temperature
only volume
only temperature
only pressure
Both pressure as well as temperature
conduction alone
convection alone
radiation alone
Both convection and radiation
reflects every colour
does not reflect any colour
absorbs black colour
reflects black colour
Liquids tend to evaporate at all temperatures
Liquids conduct more heat
Liquids expand too much when heated
Their containers also expand when heated
Conduction only
Convection only
Radiation
Both conduction and convection
`20^o C`
`40^o C`
`60^o C`
`10^o C`
temperature of the object
temperature of the surroundings
temperature difference between the object and its surroundings
average temperature of the object and its surroundings
size and temperature
size and distance from the Earth
size, temperature and mass
size, temperature and distance from the Earth