| All bodies radiate heat when their temperatures are above |
| A) 0° C | B) 0 K | C) 273 K | D) 273°C |
| As temperature increases the brightest part of the spectrum, |
| A) Shifts towards violet end |
| B) Shifts towards red end |
| C) All parts remain equally bright at all temperatures |
| D) All parts are not equally bright but brighter part does not depend on temperature |
| As temperature increases the amount of energy radiated by a hot body, |
| A) increases | B) does not change | C) decreases | D) None |
| The energy radiated by a black body |
| A) is distributed equally amongst all the wavelengths |
| B) Higher wavelengths carry greater amount of energy |
| C) Lower wavelengths carry greater amount of energy |
| D) Energy distribution depends on temperature |
| Color of a hot body as perceived by eye |
| A) will be red when temperature is high |
| B) will be red when temperature is low |
| C) will be blue when temperature is low |
| D) will be yellow when temperature is low |