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- What do you mean by the term reflection of light? Answer. The returning of light in the same medium after striking a surface is called reflection of light.
- How is a plane mirror made? Answer. A plane mirror is made by silvering one side of a thin plane glass plate. The silvered surface is then coated with some opaque material so as to safeguard the silvering on it.
- Explain the following terms: Incident ray. Reflected ray. Angle of incidence. Angle of reflection. Normal. Answer. The ray of light that strikes the surface is called the incident ray.
- Draw a diagram showing the reflection of a light ray from a plane mirror. Label on it the incident ray, the reflected ray, the normal, the angle of incidence i and the angle of reflection r.
- What do you mean by the term reflection of light ? Answer: Reflection of light— When light strikes a polished surface it comes back in the same medium, is called reflection of light.
- How is a plane mirror made ? Answer: To make a plane mirror, a thin piece of glass is taken. One surface of the mirror is made opaque by silvering it.
- Explain the following terms: Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal. Answer: Incident ray— The ray of light falling on the surface AB is called the incident ray.
- Draw a diagram showing the reflection of a light ray from a plane mirror. Label on it the incident ray, the reflected ray, the normal, the angle of incidence i and the angle of reflection r.
Using Selina Concise Physics Class 7 ICSE solutions Light Energy exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Selina Solutions are essential questions that can be asked in the final exam.
Oct 29, 2021 · Selina Concise Physics Solutions for Class 7 Chapter 4 Light Energy with easy language, expert answers and doubt clearing sections. The book is especially designed keeping in mind the syllabus of ICSE board and the difficulty level faced by the students of ICSE boards class 7. A) Objective Questions : 1.) a) The image formed by a plane mirror ...
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(a) Angle of incidence = angle of reflection (b) The incident ray, the reflected ray and the normal lie in one plane (c) The image formed by a plane mirror is at a distance behind the mirror as the object is in front of it. (d) The image formed by a plane mirror is erect and virtual. (e) We are able to see the objects around us due to irregular ref...
(a)A man standing in front of a plane mirror finds his image to be at a distance of 6 metre from himself. The distance of man from the mirror is 1. 6 m 2. 3 m 3. 2 m 4. 12 m
Question 1.
What do you mean by the term reflection of light ? Answer: Reflection of light— When light strikes a polished surface it comes back in the same medium, is called reflection of light.
Question 2.
How is a plane mirror made ? Answer: To make a plane mirror, a thin piece of glass is taken. One surface of the mirror is made opaque by silvering it. On the top of that, another thin coating of red lead oxide is given which protects the silvering of the mirror.
Question 3.
Angle of incidence— The angle formed between the incident ray and the normal is the angle of incidence. (PNM is the angle of incidence.) Angle of reflection— The angle formed between the normal and the reflected ray is called angle of reflection (MNQ is the angle of reflection) Normal— It is the line drawn perpendicular to the reflecting surface at the point of incidence. MN is the normal.
Selina Publishers Concise Physics Class 7 ICSE Solutions Chapter 4 Light Energy. Selina Publishers Concise ICSE Solutions for Class 7 Physics Chapter 4 Light Energy are been solved by expert teachers of CBSETuts.com. All the solutions given in this page are solved based on ICSE Class 7 Physics Syllabus & CISCE guidelines.
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Jul 3, 2019 · Here on NCERTBooks.Guru, you can access to Selina Concise Physics Class 7 ICSE Solutions Chapter 4 Light Energy PDF so that you can refer them as and when required. The ICSE Class 7 Physics Questions and Answers helps students while solving difficult questions. For a better understanding of this chapter, you should also see summary of Chapter 4 ...
