Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Which symbol represents energy in E = mc²?

Answer and explanation

Correct answer: E

The correct answer is A, E. In E = mc², the capital letter E represents energy, m represents mass, and c represents the speed of light in a vacuum. The superscript 2 means that c is multiplied by itself; therefore c² is a squared speed and not the symbol for energy. A useful memory aid is E for energy, m for mass, and c for the speed of light. The equation’s meaning depends on keeping these roles separate. Options B, C, and D identify other parts of the expression, so they cannot answer a question asking specifically for the energy symbol. Thus option A is unambiguously correct.

Related tags

Energy SymbolE=Mc²Scientific NotationEinsteinBiography Of Albert EinsteinA Truly Beautiful MindEnglishClass 9 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.