What is the principle of simple periscope.

What is the principle of potentiomenter?

What is the principle of zone refining?

What is the "principle of multiplication of thrust"? Explain this principle from Pascal's law. (Similar question : Derive working principle of hydraulic press from Pascal's law.)

What is the principle of Bernouli about pressure?

What is the principle of Carius method for estimation of S?

Answer the following questions : What are the basic principles of sample survey?

What is the principle involved in Bessemer process ?

What is the main principle of atom bomb ?

What is nephrosis? What is the cause of it? What are the symptoms of the disease? What the principle of diet given to a patient of nephrosis.