Assertion and Reason are given in following questions. Each...

Assertion and Reason are given in following questions. Each question have four option. One of them is correct it. (1) If both assertion and reason and the reason is the correct explanation of the Assertion. (2) If both assertion and reason are true but reason is not the correct explanation of the assertion. (3) If the assertion is true but reason is false. (4) If the assertion and reason both are false. Assertion: The mass equivalent of 1000 kwh energy is 40 microgram. Reason: This follows from $E=m c^{2}$ where $C=3 \times 10^{8} \mathrm{~m} / \mathrm{s}$ (A) 1 (B) 2 (C) 3 (D) 4

Assertion and Reason are given in following questions. Each question have four option. One of them is correct it.
(1) If both assertion and reason and the reason is the correct explanation of the Assertion.
(2) If both assertion and reason are true but reason is not the correct explanation of the assertion.
(3) If the assertion is true but reason is false.
(4) If the assertion and reason both are false. Assertion: The mass equivalent of 1000 kwh energy is 40 microgram. Reason: This follows from $E=m c^{2}$ where $C=3 \times 10^{8} \mathrm{~m} / \mathrm{s}$
(A) 1
(B) 2
(C) 3
(D) 4

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Key Concepts

Assertion and Reason Questions

These are a type of evaluation question that requires assessing two statements: an assertion and a reason. The task is to determine whether each statement is true and if the reason provided appropriately explains the assertion. This format tests critical thinking and comprehension of subject matter concepts.

Mass-Energy Equivalence

Mass-energy equivalence is a fundamental principle of modern physics introduced by Albert Einstein through the equation E = mc². This principle explains that mass can be converted into energy and vice versa, and it forms the basis for understanding processes in nuclear physics and cosmology.

Unit Conversions in Energy Calculations

Converting units is a key skill in physics, especially when relating macroscopic measures of energy, such as kilowatt-hours, to microscopic quantities, like mass, through the mass-energy equivalence principle. Correct unit conversion ensures that calculations are accurate and that physical laws are applied consistently.

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