15. Light Class 7 Science [LATEST] Solutions Chapter Review in English - CBSE Study
NCERT Solutions for Class 7 Science are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 15. Light with detailed explanations and step-by-step answers for better exam preparation. Each Chapter Review is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 7 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science.
Class 7 English Medium Science All Chapters:
15. Light
1. Chapter Review
Chapter Review:
- Light travels along straight lines.
- Mirror changes the direction of light This change of direction by a
mirror is called reflection of light. - In an image formed by a mirror, the left side of the object is seen on the right side in the image, and right side of the object appears to be on the left side in the image.
- If the reflecting surface of a spherical mirror is concave, it is called a concave mirror.
- If the reflecting surface is convex, then it is a convex mirror.
- An image formed on a screen is called a real image.
- The image formed by a plane mirror could not be obtained on a screen. Such an image is called a virtual image.
- Concave mirror form a real image.
- Image formed by a convex mirror is erect, virtual and smaller in size
than the object. - Those lenses which feel thicker in the middle than at the edges are convex lenses.
- Those which feel thinner in the middle than at the edges are concave lenses.
- A concave lens always forms erect, virtual and smaller image than the
object. - When seven colours of rainbow pasting on the disk in their order rotates in daylight it seems white. Such disk is generally known as Newton’s disk.
- White light is composed of seven colours.
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