CLASS 7 | SCIENCE| CHAPTER -11 PART-4 | LIGHT SHADOW & REFLECTION| NCERT| CBSE | KV| NEP 2020

Описание: Chapter 11 – Light: Shadows and Reflections (PART–4)

Class 7 Science | NCERT Curiosity | CBSE | Science Wallah Junior

📖 Description (Professional & SEO Optimized)

Welcome to Chapter 11 – Light: Shadows and Reflections (PART–4) for Class 7 Science, based strictly on the NCERT Curiosity (CBSE) syllabus.

In this part, we explore how light helps us create useful devices and understand image formation through simple scientific principles. Through hands-on activities and real-life applications, students will clearly understand how light travels, reflects, and forms images.

🔎 Topics Covered in PART–4:
🔹 11.7 Pinhole Camera

Activity 11.9 – Let us explore: Simple pinhole camera

Activity 11.10 – Let us construct: Sliding pinhole camera

Fig. 11.12:
(a) Simple pinhole camera
(b) Image of candle flame

Fig. 11.13: Sliding pinhole camera

Students will learn how a tiny hole can form a real, inverted image without using a lens.

🔹 11.8 Making Some Useful Items
11.8.1 Periscope

Fig. 11.14: A periscope
Understand how multiple reflections help us see objects not directly visible.

11.8.2 Kaleidoscope

Fig. 11.15: A kaleidoscope
Learn how repeated reflection creates beautiful symmetrical patterns.

🎯 Learning Outcomes:

✔ Understand real and inverted images
✔ Learn construction of pinhole camera
✔ Understand multiple reflection
✔ Explore practical applications of mirrors
✔ Build strong conceptual clarity for exams

This lesson is ideal for:

Class 7 CBSE students

NCERT Curiosity learners

Teachers and school presentations

Exam preparation and revision


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