Toppers Study Toppers Study Toppers StudyGet complete NCERT Solutions for 7 Science 15. Light with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Get complete NCERT Solutions for 7 Science 15. Light with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Preparing for exams becomes easier with Additional Questions. Whether you are studying for board exams or mid-term exams, 7 Science Chapter 15. Light solutions provide quick revising points, well-structured answers, and additional practice material to help you score better.
ncert_solutionsAdditional Questions:
Ques: Why is this suggested that we should not look directly toward the sun or its image?
Ans: Never look directly towards the sun or its image as it may damage your eyes. You may look at the image of the sun when it is thrown on a screen or a wall.
Ques: Why are convex mirror used mainly in vehicles as side mirror?
Ans: Convex mirrors can form images of objects spread over a large area. So, these help the drivers to see the traffic behind them.
Ques: Write three uses of concave mirrors?
Ans: Uses of concave mirrors.
(i) it is used by ENT doctors to see the ears, nose and throat and reflect the light.
(ii) The dentist uses it to get enlarge image of teeth.
(iii) The reflectors of torches, headlights of cars and scooters are concave in shape.
Ques: Write the differences between convex and concave lens.
Ans: The differences between convex and concave lens.
convex lens:
(i) It feels thicker in the middle than at the edges.
(ii) A convex lens converges (bends inward) the light.
(iii) It forms real and inverted images.
concave lens:
(i) It feels thinner in the middle than at the edges.
(ii) A concave lens diverges (bends outward) the light.
(iii) It forms virtual and erect images.
Ques: Why is word “AMBULANCE” written strangely on Ambulance?
Ans: When the driver of a vehicle ahead of an ambulance looks in
her/his rear view mirror, s/he can read ‘AMBULANCE’ written on it and give way to it.
Ques: What is Newton’s Disk?
Ans: 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.
Additional Questions are created by experts to give step-by-step explanations. Around 60–70% of exam questions are based on NCERT concepts. Our 7 Science Chapter 15. Light solutions help you understand the core concepts and practice effectively.
Revision is the key to exam success. Our notes for 7 Science highlight important formulas, key definitions, and exam-ready points from Chapter 15. Light. These quick revision notes make last-minute preparation easy.
Every NCERT chapter ends with exercises, and solving them is crucial. Our Additional Questions include complete solutions for 7 Science Chapter 15. Light exercises. With step-by-step answers, you gain clarity and confidence to attempt similar exam questions.
To boost your preparation, we also provide additional important questions with answers. These are prepared from previous year board papers, sample papers, and important concepts of Chapter 15. Light. Practicing these ensures you are well-prepared for both board and mid-term exams.
Our Additional Questions are useful for both board exams and mid-term exams. For 7 Science, we provide notes, exercises, and important Q&A so that you can revise smartly and write perfect answers in exams.
In short, Additional Questions for 7 Science Chapter 15. Light are a complete study package. With quick revising points, NCERT exercises, and additional important questions, you can prepare effectively for exams. Make these solutions your study companion and excel in your academic journey.
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