When the heat rays from the sun area focused on a piece of
black cloth by means of a lens, the cloth catches fire. Why ?
Answer Posted / guest
It is because the heat radiations obey the laws of refraction.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
Which of the above conductivity measured during conductometric titration?
Why is estimation of copper done at 620 nm wave length?
What is titration?
Why is the role of glycerol & naoh?
What is german silver?
Why is disodium salt of edta preferred to edta?
What is polar hcl?
why do hard water never produce foam when a soap is dissolved?
What is the function of diethyl amine?
why is their exotherm while addition of reducing agents in reduction reaction?
What is an indicator electrode?
What is equivalent conductivity?
Give the principle of potentiometer titration.
What is the formula you will use to calculate how many millilitres of 5.5 m naoh are required to prepare 400 ml of 1.5m naoh?
can we Consider the Purity threshold and Purity angle in place of peak purity for the specificity test for method verification