Explore & Learn

Sreeshan · 2024-01-30T09:47:46.794Z

How it works? • Smooth surfaces are like good bouncers: When light hits a smooth, shiny surface like a mirror, all the light rays bounce back in the same direction, just like a well-aimed ball bouncing straight off a wall. This creates a clear reflection, like seeing your face in a mirror. • Rough surfaces are like clumsy bouncers: If the surface is rough or bumpy, the light rays bounce back in many different directions, like a ball bouncing off a pile of pillows. This is why we don't see a clear reflection on rough surfaces, but rather a dull or scattered look. The two main kinds of reflection: • Specular reflection: This is the kind of reflection you see in mirrors, where the light rays bounce back perfectly, creating a clear and sharp image. Think of looking at your reflection in a calm lake. • Diffuse reflection: This is the kind of reflection you see on most objects, where the light rays bounce back in many different directions, scattering the light and making the surface appear dull or matte. Think of looking at a painted wall – it doesn't have a shiny reflection because of diffuse reflection. Important role in daily life: • Mirrors: We use mirrors to see ourselves and our surroundings. • Retroreflectors: These are special materials that reflect light directly back to its source, no matter the angle. They are used in road signs and safety markings to make them visible to drivers at night. • Lenses: These use reflection and refraction (bending of light) to focus light and create images, like in eyeglasses and cameras. Laws of reflection of light: 1. Law of Incidence and Reflection: This law states that the angle of incidence (the angle at which the light ray hits the surface) is equal to the angle of reflection (the angle at which the light ray bounces back). Imagine tossing a tennis ball at a wall – the angle you throw it at is the same as the angle it bounces back at. This holds true for light rays reflecting off smooth surfaces like mirrors. 2. Law of the Plane of Incidence: This law states that the incident ray, reflected ray, and the normal to the surface (a line perpendicular to the surface at the point of impact) all lie in the same plane. Essentially, if you imagine the light ray, its reflection, and a line straight down from the point of impact, they all form a flat plane together.

Search, Explore, Share & Discuss your passionate topics.

Advance Group

Primary Group

Primary Learning Plan

Topics to Learn

Kids Activities

Kids Addition

Common

Online Resources

Drive

Update Summary

Team Members

Academic

Attendance

INWFHOUTLEAVE

Submitted

To test this feature, visit your live site.

Sreeshan

Jan 30

Reflection of light (physics, chapter 6)

in Sreeshan

How it works?

Smooth surfaces are like good bouncers: When light hits a smooth, shiny surface like a mirror, all the light rays bounce back in the same direction, just like a well-aimed ball bouncing straight off a wall. This creates a clear reflection, like seeing your face in a mirror.
Rough surfaces are like clumsy bouncers: If the surface is rough or bumpy, the light rays bounce back in many different directions, like a ball bouncing off a pile of pillows. This is why we don't see a clear reflection on rough surfaces, but rather a dull or scattered look.

The two main kinds of reflection:

Important role in daily life:

Laws of reflection of light:

2 comments

Comments (2)

Malu

Jan 30

Check this Link - It contains questions and answers. Good Job Anwering It. This One Too. And this One Too.

Edited

Malu

Jan 30

New vehicles are example of Diffuse Reflection

Write what is a Reflection first

Give an example of rough Surface

No	Action	A	A1	A2	A3	A4
01	Updates as per my time table, reply for the comments for you	*	*	*	*	*
02	Post a topic based on your text book	*	*	*	*	*
03	Answered all questions on my posts till the previous date.	*	*	*	*	*
04	English daily woks	*	*	*	*	*
05	Reduce device time in to half an hour in a day (Phone calls, TV, youtube, sports videos, whatsapp, insta, FB etc). Phone should be keep with parents / grandparents		*	*	*	*
06	Involving in cleaning and mopping at Uyir in the morning Or Keep Uyir space clean and beautiful throughout the day.		*	*	*	*
07	Follow health and hygiene rules		*	*	*	*
08	Complete 3 personal responsibilities mentioned by parents			*	*	*
09	Support other children or help in their learning at least 20 minutes in a day			*	*	*
10	Find time to do more research on your passionate area. ( need extra post other than the subject post)				*	*
11	70 % and above marks attain any exam.					*