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Which of the following expressions is not dimensionally correct ?

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a
TK=tc C+273.15
b
pH=logH+
c
TK=tF F3259+273.15
d
TF F=95te C+32

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detailed solution

Correct option is A

A physical expression should also be dimensionally correct. For example, the conversion expression of Celsius temperature to kelvin temperature may be written as

This expression is numerically correct but not dimensionally as the unit of 0c is °C and that of Tis K.
 

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