A person has 400 million alveoli per lung with an average radius of 0.1 mm for each alveolus. Considering the alveoli are spherical in shape, the total respiratory surface of that person is closest to

Question

A person has 400 million alveoli per lung with an average radius of 0.1 mm for each alveolus. Considering the alveoli are spherical in shape, the total respiratory surface  of that person is closest to

Examsnet · Accepted Answer

Correct Answer is :  1000 mm‌2

KVPY SX SB Exam 2015 Question Paper