A piece of stone weighs 180 N in air and 150 N in a beake...
A piece of stone weighs 180 N in air and 150 N in a beaker containing 160 N of methylated spirit. What is the up thrust exerted on the stone?
50N
40N
30N
20N
10N
Correct answer is C
No explanation has been provided for this answer.
The thermometric substance of an absolute thermometer is ...
Which of the following statements about solid friction are correct? It i. is a force ii. occurs ...
A sheet of white paper viewed through blue glass appears blue because ...
Which of the following thermometers is used to measure the temperature of the human body? ...