Consider the following pairs:
Instrument                 Used for measuring the
Sphygmomanometer  :  difference in vapor pressure of two liquids
Tachometer                :  rotation speed of a shaft or disk
Venturimeter              :  rate of flow of fluids through the pipe
Tanometer                  :  pressure inside the eyes
Which of the above is/are correctly matched?

Answer: [C] 2, 3 and 4 Only

Sphygmomanometer is an instrument used for measuring blood pressure

This question is a part of GKToday's Integrated IAS General Studies Module