1. Weans law
2. Stefan’s law
3. Kirchhoff’s law
4. Planck’s law
Planck’s law
1. Thermal radiation
2. Temperature radiation
3. Monochromatic radiation
4. None of these
Monochromatic radiation
1. 5-15, 20-200 and 3000-50000 W/m2 K
2. 20-50, 200-500 and 50000-105 W/m2 K
3. 50-100, 500-1000 and 105-106 W/m2 K
4. 20-100, 200-1000 and a constant 106 W/m2 K
5-15, 20-200 and 3000-50000 W/m2 K
1. By conduction only
2. By convection only
3. By conduction and convection
4. Predominantly by radiation
Predominantly by radiation
1. 00 on scale P corresponds to 00 on scale Q
2. 500 on scale P corresponds to 00 on scale Q
3. 500 on scale P corresponds to -1000 on scale Q
4. 1000 Celsius corresponds to 2000 on scale P
500 on scale P corresponds to 00 on scale Q
1. Pettier effect
2. Thermionic effect
3. Zoetrope’s
4. Magnetic cooling
Magnetic cooling
1. 24kJ
2. 38kJ
3. 340kJ
4. 600kJ
340kJ
1. Conduction
2. Convection
3. Radiation
4. All of these
Convection
1. Conduction
2. Convection
3. Radiation
4. All of these
Radiation
1. Conduction
2. Convection
3. Radiation
4. All of these
Radiation