#Physics Reflection of Light

[vavaclasses]

Ray Optics and Optical Instruments- Reflection of Light by Spherical Mirrors Class 12 Physics Notes & Concepts

Introduction:

Reflection of light is a fundamental concept in optics that explains how light bounces off surfaces. When it comes to curved surfaces like those of spherical mirrors, the behavior of reflected light leads to fascinating phenomena such as image formation, magnification, and inversion. Understanding the terms associated with spherical mirrors, such as the radius of curvature, focus, and principal axis, is essential for mastering this topic in Class 12 Physics. In this lesson, we’ll explore the intricacies of reflection by spherical mirrors and how they create different types of images.

Have you ever noticed something intriguing when you look in a mirror? Let’s try a small activity. Stand in front of a mirror and move your right hand. Now lift your left hand. Did you notice that in the mirror, the right appears as the left and vice versa? This phenomenon occurs due to the properties of mirrors. Let’s explore more about a specific type of mirror called the spherical mirror.

Spherical Mirror

Imagine you are sitting at a dining table, and you're playing with a spoon. When you look at yourself in the spoon, you might notice something funny: when the spoon is close to your face, your image appears magnified, but when you move it further away, your image becomes inverted. This happens due to the reflective properties of spherical mirrors.

To understand what's happening, let's discuss some key terms associated with spherical mirrors:

Radius of Curvature (R): The distance between the pole (P) and the center of curvature (C). It represents the radius of the sphere from which the mirror is a part.

Center of Curvature (C): This is the center of the sphere from which the mirror segment is taken. It lies on the principal axis and is at a distance equal to the radius of curvature from the pole.

Aperture: The effective diameter of the mirror, which determines the extent of the reflection of light.

Pole (P): The central point of the mirror’s surface. It serves as a reference point for measuring distances along the principal axis.

Focus (F): The point where light rays parallel to the principal axis converge after being reflected by the mirror. It lies halfway between the pole and the center of curvature.

Principal Axis: An imaginary line that passes through both the optical center (pole) and the center of curvature of the spherical mirror.

Focal Length (f): The distance between the pole and the focus. It is related to the radius of curvature by the equation f=R​/2.

Conclusion

Spherical mirrors play a crucial role in various optical instruments and everyday applications. By understanding how light reflects off these mirrors and the significance of key terms like focal length and radius of curvature, students can better grasp the principles of image formation. This knowledge not only lays the foundation for more advanced topics in optics but also enhances the ability to apply these concepts in real-world situations.

[and-corn]

11:49, december 2, 2019

[huliajelena]

WIP

[silent--symphony]

Give your dreams wings to fly.

[356migoro]

[t-u-i-t-c]

"You actually were alive?"

[karmesean]

what was i made for?

[elkement]

"First Encounter"

... still work in progress!

I am using a photo I took myself as a reference; only the shape of the light source is fantasy!

[michaelswaist]

Just got blinded by his mug

[xoxochb]

A RAINBOW APPEARED ON MY TABLE IN MY ROOM HOW DID THAT HAPPEN IT'S KINDA COOL

IT’S CUTE I LOVE RAINBOWS SO MUCHHHH

[the-everqueen]

got a rejection from my alma mater for a fellows position 🙃 it feels like a new low when the institution that granted me a phd says i'm not good enough to teach the first-year courses they never have enough instructors for.

[sciencesolutions]

[o2studies]

I want to stay more consistent. Falling away just once tends to have a big butterfly effect of falling away from everything for me (hence the end to my 100dop), so, yesterday:

༻`` 3 May 24 — Friday 29/60

🧡 academia >> Only studied chemsitry for 7mins but I finished my first exam!! It was a chemsitry practical one and I think it went well!! ^^ Did my art work in study today so I could continue working on it and socialise with my non-art friends

🧡 physical health >> I did a couple pushups

🧡 self care >> I was exhausted after the exam so later in chemsitry I played cards with my friends and let myself relax at home. I also cuddled my dogs some more and said no to ice cream (I had more earlier plus other snacks)

☀️ 7 🌙 after 10

Also I only missed 3 days of #nodalchallenge and I thought I missed a lot more so my motivation's slightly up! It's good to reread old posts, journal entries, diaries, look at old photos and conversations. For me anyway, I can get so caught up in the present moment and how badly it's going, feeling even worse with the fact that I remember being so much more consistent and productive and more disciplined and whatever other good stuff I thought. But really looking back I get to see how many bad and horrible days I also had AND how I still managed to bring myself up once again. It's a strange feeling to be inspired by yourself but it's also so nice <3

I hope you all get inspired by and take more comfort in yourselves more often :)

[kaiasky]

more like physically cringe rendering. if we are being honest

[crystalpallette]

I love it when they give guns to pretty girls and also they are in summerwear

[amelikos]

Promotional stuff for HZ086 (here).