Question

An open and wide glass tube is immersed vertically in mercury in such a way that length 0.05 m extends above mercury level. The open end of the tube is closed and the tube is raised further by 0.43 m. The length of air column above mercury level in the tube will be? Take p_atm = 76 cm of mercury. 

(A) 0.215 m 

(B) 0.2 m 

(C) 0.1 m 

(D) 0.4 m 

Answer 1

Correct option (C) 0.1 m 

Explanation:

 Initially 

Since, temperature remains constant