Physics-
General
Easy

Question

A liquid of density r is filled in a U-tube, whose one end is open & at the other end a bulb is fitted whose pressure is P subscript A end subscript . Now this tube is moved horizontally with acceleration 'a' as shown in the figure. During motion it is found that liquid in both column is at same level at equilibrium. If atmospheric pressure is P subscript O end subscript , then value of P subscript A end subscript is

  1. pal    
  2. rho g l    
  3. P subscript 0 end subscript minus p a l    
  4. P subscript 0 end subscript plus rho a l    

The correct answer is: P subscript 0 end subscript minus p a l

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