Question

Measure the temperature of the
following
Take (1) a beaker full of water, (ii) a
beaker full of soil/sand and (iii) a closed
bottle containing a thermometer. Keep
them in bright Sunlight for three hours.
Now measure the temperature of all 3
vessels. Also, take the temperature
reading in shade at the same time.
Now answer
1. Is the temperature reading more in
activity (i) or (ii)?
2. Based on the above finding, which
would become hot faster - the land or
the sea?
3. Is the thermometer reading of the
temperature of air (in shade) the same
as the temperature of sand or water?
What do you think is the reason for
this? And why does the temperature
have to be measured in the shade?
4. Is the temperature of air in the closed
glass vessel/bottle the same as the
temperature taken in open air? (0 What
do you think is the reason for this?
(ii) Do we ever come across this
phenomenon in daily life?​

Answer 1

Dear Forid, I am glad to hear that you have already started taking due preparation for the final examination. You are always a good student and you did well in the SSC. I hope you will also do well in the next final exam.