Which of the following options increase the sensitivity of a bubble tu – McqOptions

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1.	Which of the following options increase the sensitivity of a bubble tube?1. Using a liquid of greater surface tension2. Increasing the diameter of the tube3. Increasing the length of the tube4. Decreasing the diameter of the tubeSelect the correct answer using the codes given below:
A.	1 and 2 only
B.	2 and 3 only
C.	3 and 4 only
D.	1 and 4 only
Answer» C. 3 and 4 only

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