Choose the correct statement(s).

Options

A. A dimensionally correct equation must be correct.
B. A dimensionally correct equation may br incorrect.
C. ` A dimensionally incorrect equation must be correct.
D. A dimensionally incorrect equation may be correct.

Answer

B, D

Explanation

A dimensionally correct equation may or may not be correct. For example , ` s = ut + at^(2)` is dimensionally correct , but not correct actually.
A dimensionally incorrect equation may be correct also . For example , `s = u + ( a)/( 2) ( 2n -1)` is a correct equation , but not correct dimensionally.