Question

Motion of an oscillating liquid in a U tube is 

(a) periodic but not simple harmonic. 

(b) non-periodic. 

(c) simple harmonic and time period is independent of the density of the liquid. 

(d) simple harmonic and time period is directly proportional to the density of the liquid.

Answer 1

Correct option  (c) simple harmonic and time period is independent of the density of the liquid. 

Explanation:

 Motion of an oscillating liquid column in a U tube is SHM with period T = 2π√h/g, where h is the height of liquid column in one arm of U rube in equilibrium position of liquid. Therefore, T is independent of density of liquid.