Correct answer
D. Photo electric cell
Explanation
The correct answer is Photo electric cell.
In high temperature carbonisation of coal compared to low temperature carbonisation?
Measurement of sub-zero Celsius temperature in industry is done most commonly by ________?
Reaction of calcium Fluorapatite with sulphuric acid produces ________?
________ has the highest melting point out of the following?
For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of ________ microns (1 mm = 1000 microns)?
Which of the following is produced by condensation polymerisation?