Question

 Two identical springs of constant k are connected, first in series and then in parallel. A metal block of mass m is suspended from their combination. The ratio of their frequencies of vertical oscillations will be in a ratio

(A) 1:4   

(B) 1:2   

 (C) 2:1    

(D) 4:1

Answer 1

B) 1:2 

 The ratio of their frequencies of vertical oscillations will be in a ratio  1:2