STANDARDPhysics-Modern Physics
STANDARD Physics Mass-Energy Equivalence MCQ Question
Type: MCQ-conceptual-Medium
The equivalent energy of 1 g of substance is
A
9 × 10¹³ J
B
6 × 10¹² J
C
3 × 10¹³ J
D
6 × 10¹³ J
Correct Answer
Option A
Detailed Explanation
Using, E = mc². Here, m = 1 g = 1 × 10⁻³ kg, c = 3 × 10⁸ m s⁻¹. E = 10⁻³ × 9 × 10¹⁶ = 9 × 10¹³ J.
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