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Formula Sheet

Light Energy

NIOS · Class 10 · Science & Tech

All formulas from Light Energy in NIOS Class 10 Science & Tech. Key equations, constants, and identities for board exam preparation.

41 questions38 flashcards5 concepts

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Ray diagrams showing image formation by a convex mirror for two object positions: at infinity and at a finite distance from the mirror. Each diagram should clearly show the object, mirror, principal a
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15 Formulas · 4 Sections

Formulas

1. Basics of Light and Reflection

 i =  r

R = 2f

M = I/O = v/u

1/f = 1/v + 1/u

n  about speed of light in vacuum / speed of light in medium

2. Spherical Mirrors

R = 2f

1/f = 1/v + 1/u

M = I/O = v/u

3. Refraction of Light and Lenses

n  speed of light in vacuum / speed of light in medium

n  sin i / sin r

1/f = 1/v - 1/u

m = I/O = v/u

P = 1/f(m)

4. Image Formation by Lenses

1/f = 1/v - 1/u

m = I/O = v/u

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Frequently Asked Questions

What are the important topics in Light Energy for NIOS Class 10 Science & Tech?
Key topics in Light Energy include Light Energy Concept Map, Light Energy Chapter Overview, Light Energy Concepts Overview. These are the concepts NIOS Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Light Energy — NIOS Class 10 Science & Tech?
Understand the core concepts first, then work through the 41 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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