NEET Physics Mechanical Properties of Fluids Questions Solved


If pressure at half the depth of a lake is equal to 2/3 pressure at the bottom of the lake then what is the depth of the lake

(a) 10m                 (b) 20m
(c) 60m                 (d) 30m

(a) Pressure at half the depth = P0+h2dg

Pressure at the bottom = P0+hdg

According to given condition

P0+h2dg=23(P0+hdg)3P0+3h2dg=2P0+2hdgh=2P0dg=2×105103×10=20 m

Difficulty Level:

  • 14%
  • 61%
  • 19%
  • 8%
Crack NEET with Online Course - Free Trial (Offer Valid Till September 21, 2019)