Question

Choose the correct statement(s)

• A. A dimensionally correct equation must be physically correct.
• B. A dimensionally correct equation may be physically correct.
• C. An equation whose L.H.S. and R.H.S. has same values in magnitude must be physically correct.
• D. An equation is physically correct when it is dimensionally and mathematically correct.

Answer 1

Answer: (B), (D)

The correct options are
B A dimensionally correct equation may be physically correct.
D An equation is physically correct when it is dimensionally and mathematically correct.

A dimensionally correct equation may or may not be correct. For example, $s=ut+a{t}^2$ is dimensionally correct, but not correct actually.
A equation is correct when it is dimensionally and mathematically correct.