It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________?
Correct answer: C. An equal and opposite pressure acts from inside
- A. of gravity
- B. of the height of a man
- C. An equal and opposite pressure acts from inside
- D. Earth pulls the man upward
- E. None of these
Explanation
Atmospheric pressure is balanced by pressure from fluids and gases inside the body acting outward, so the net force on the body is small. The pressure is not absent; it is balanced internally.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Physics in Daily Life
Everyday physics explains motion, force, work, power, pressure, heat, light, sound and electricity through familiar devices and natural events. Topics include simple machines, friction, expansion, reflection and refraction, lenses, household circuits, electrical safety and magnetism, with mass distinguished from weight and heat distinguished from temperature.
Practise Physics in Daily Life
343 free Physics in Daily Life MCQs from Everyday Science, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Everyday Science questions like this
Everyday Science is on 41 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.