Plane Mirror for Class 9 Physics | Reflection of Light

🌈 Plane Mirror

Learn reflection, laws of reflection, image formation and multiple images through an interactive quiz and answer reveal activity.

🎯 Learning Objectives

• Understand reflection of light by plane mirrors.
• Learn laws of reflection.
• Study image formation and properties.
• Understand multiple image formation.

🧩 Competencies

• Conceptual Understanding
• Observation Skills
• Analytical Thinking
• Application Skills

📊 Learning Outcomes

• Defines plane mirror.
• States laws of reflection.
• Explains nature of images.
• Calculates number of images.

📌 Evidence

• Student explains ray diagram
• Correct answers in MCQ
• Application in daily life examples

📘 Activity Overview

Click the MCQ section, select one option for every question, and then press Submit Quiz. The selected option will be highlighted immediately. After submission, correct answers will appear in green and wrong selections will appear in red. Open the HOTS section to reveal answers one by one.

📝 Who Am I (MCQ)

Answered: 0/10

1. I am a flat reflecting surface.

Concave mirror Plane mirror Convex lens Prism

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2. I fall on the mirror.

Reflected ray Incident ray Normal Angle

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3. I bounce back from mirror.

Incident ray Reflected ray Normal Axis

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4. I am perpendicular line at point of incidence.

Normal Ray Mirror Angle

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5. ∠i = ∠r is:

Law of refraction Law of reflection Newton law Energy law

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6. Image in plane mirror is:

Real Virtual Inverted Enlarged

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7. Same size image is formed due to:

Convex mirror Plane mirror Lens Prism

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8. Reflection from rough surface is:

Regular Diffuse Total Internal

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9. Mirrors at 60° form:

3 images 5 images 7 images 1 image

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10. Mirror used in periscope:

Plane mirror Concave mirror Convex mirror Lens

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🧠 HOTS

1. Why image is laterally inverted?

Due to left-right reversal in reflection.

2. Why image distance equals object distance?

Due to symmetry of reflection.

3. Why two mirrors form multiple images?

Due to repeated reflections.

4. Why smooth surface gives clear image?

Due to regular reflection.

5. Why kaleidoscope forms patterns?

Due to multiple reflections at angles.

Concept By Ritu Teacher, Designed By Shaleen Shekhar