in an experimental set up for sublimation a preforated asbesotos sheet is placed between china dish and funnel. what is porpose
The perforated asbestos sheet serves two purposes:
The figure given below represents an experimental set up with a weighing machine to demonstrate a particular process in plants. The experimental set up was placed in bright sunlight. Study the diagram and answer the following questions :
(a) Name the process intended for study.
(b) Define the above mentioned process.
(c) When the weight of the test tubes A and B is taken before and after the experiment, what change is observed ? Justify.
(d) What is the purpose of keeping the test tube B in the experimental set up ?
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
(a) Name the phenomenon being demonstrated.
(b) What is the purpose of putting oil in the test tube ?
(c) What is the purpose of the spring balance in the set-up ?
(d) Would it make a difference if the experimental set-up is kept in bright sunshine ?