question_answer

Scent sprayer is based on:

A)  Bernoullis theorem       

B)  Archimedes principle   

C)  Charles law                       

D)  Boyles law

Correct Answer: A

Solution :

                Key Idea: Where the velocity is large, pressure will be small. When rubber ball is squeezed, it sends s stream of air which passes through the tube The velocity of air is very large in the constricted part of the tube so that the pressure in the part is lowered (Bernoullis principle) consequently liquid rises in the tube is mixed with air and comes out in the form of fine spray. Hence, scent sprayer is based on Bernoullis theorem.