How are the various articles and materials shown in the picture measured?
Answer the following questions: How is a plane mirror made?
How is bread made?
Answer the question How is charcoal made?
Give scientific reasons: A certain type of ceramic tiles are fixed on the outer layer of a space shuttle.
How are articles coated with metal films.
It is know that 10% of certain articles manufactured are defective.What is the probability that in a random sample of 12 such articles,9 are defective?
CHETANA PUBLICATION-Substances in Common Use-EXERCISE