Q. Which of the following is dimensionally inconsistent?

निम्नलिखित में से कौन सा आयामी रूप से असंगत है?

A
F = ma
एफ = मा
B
V = IR
वी = आईआर
C
E = mc
ई = एमसी
D
s = ut + ½at²

Explanation

F = ma ⇒ MLT⁻² = M × LT⁻² ✅
V = IR ⇒ Voltage = Current × Resistance ✅
E = mc → This is incorrect; correct is E = mc² ❌
s = ut + ½at² ⇒ ✅ correct dimensional form
So, E = mc is dimensionally inconsistent.

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