35 What force must be applied to detach two wetted

Last updated: 6/7/2023

35 What force must be applied to detach two wetted photographic plates 9 cm x 12 cm in size from each other without shifting them The thickness of water between the plates is 0 05 mm Surface tension of water is 0 073 N m a 31 5 N c 40 5 N b 16 5 N d 20 0 N