Heat Test - 35...

If the temperature of a hot body is increased by 50% then the increase in the quantity of emitted heat radiation will be

Two thermometers are used to record the temperature of a room and the bulb of one is wrapped in a wet hanky.

Boojho has three thermometers as shown in above Figure. He wants to measure the temperature of his body and that of boiling water. Which thermometer (s) should he choose?

Mercury is often used in clinical thermometers. Which one of the following properties of mercury is not a reason for this ?

Two thermometers are constructed in such a way that one has a spherical bulb and the other has elongated cylindrical bulb. The bulbs are made of same material and thickness. Then :

A metal spoon is placed in one of two identical cups of hot coffee. Why does the cup with the spoon have a lower temperature after a few minutes ?

A student took an iron rod and a wooden rod and wrapped each of them in a piece of paper. These were then heated as shown. It was found that the paper around the iron rod does not burn whereas the one around the wooden rod catches fire.It is because

___________ is a measure of the degree of hotness of an object.

Why is sense of touch not reliable?

Weather reports are made using __________ thermometer