Density
Intensity of solar radiation
Intensity of earthquake
High temperatures
Answer is Right!
Answer is Wrong!
The correct answer is A. Density.
A pycnometer is a laboratory instrument used to measure the density of liquids and solids. It is a small, usually cylindrical, container with a flat bottom and a stopper. The pycnometer is filled with the material to be measured, and the volume of the material is then determined. The density is then calculated by dividing the mass of the material by its volume.
Option B is incorrect because the intensity of solar radiation is measured by a pyranometer.
Option C is incorrect because the intensity of an earthquake is measured by a seismograph.
Option D is incorrect because high temperatures are measured by a thermometer.