The force on a Phonograph needle is `1.2 N.` the point has a circular cross-section whose
Channel: Doubtnut
Date: 08/11/2021

The force on a Phonograph needle is `1.2 N.` the point has a circular cross-section whose radius is 0.1 mm. Find the pressure (in atm) it exerts on the recods. Given `1 "atm" = 1.013 xx 10^(5) Pa.`