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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