Geometric Optics – Hub of related Posts

This experiment is on the Verification of Snell’s law of refraction (and hence finding the refractive index of glass). Experiment: Verification of Snell’s law of refraction Apparatus: light box, glass ...

In this post, we present you with a Refractive Index Calculator that is based on Snell's Law. The Formula used: Refractive Index (n) = sin(Incident Angle) / sin(Refracted Angle) Refractive ...

Here we will present the New Cartesian Sign Convention for Spherical Mirrors for measuring various distances in the ray diagrams of spherical mirrors (convex mirrors and concave mirrors). Also read ...

In this post, you will find a set of Numericals of Light for Class 10. The solutions are given as well that would help you to get a good grasp ...

Let's see what the value and sign of the magnification of a lens tell us about the type of lens and image formed. 1) If the magnification ‘m’ has a ...

Usually, concave mirrors are used in torches, Searchlights, and headlights of vehicles to obtaina parallel beam of light. They are also employed as shaving mirrors to obtain a large image ...

The mirror that we see on the side of a car, which the driver uses to see the image of vehiclesbehind him are convex mirrors. They are used as rear ...

In this post, we will solve Numerical problems based on the Light chapter of class 8 science. Here, first, we will go through the law of reflection & related formulas, ...

The image below shows the wavelengths of 7 colors of VIBGYOR in nanometers. ColourWavelength in nanometerViolet [v]400-440Indigo [I]440-460Blue [B]460-500Green [G]500-570Yellow [Y]570-590Orange [O]590-620Red [Red]620-700Wavelengths of 7 colors of VIBGYOR Violet has ...

The twinkling of stars is an effect of atmospheric conditions on the refraction of light. Here are the reasons: Apparent star position due to atmospheric refraction i. Stars are point ...

In this post, we will solve numerical problems based on Lens Makers' Equation. Here is our post on the equation used here which you can read: Lens Makers' equation. Numerical ...

Lens makers’ equation provides a relation between refractive index (n), focal length (f ), and radii of curvature R1 and R2 for a thin lens. Lens makers’ equation Here is ...

Let's solve a numerical based on real depth, apparent depth, and refractive index. Also, you will get to know about the RI formula to be used to solve this. Real ...

In this post, we will prove mathematically that Refractive index = Real depth/apparent depth. As an Illustration of refraction: 1) When seen from outside, the bottom of a water body ...

Q] State using a neat diagram, what happens to the path of lighti. when light ray passes from rarer to denser medium.ii. when light ray passes from denser to rarer ...

In this post, we will define the Magnification produced by Lenses, and then see the formulas used to find the magnification. There are 2 ways to define and formulate the ...

Lens Formula - A formula that gives the relationship between image distance (v), object distance (u), and focal length (f ) of a lens is known as the lens formula ...

Here we will present the New Cartesian Sign Convention for spherical lenses for measuring various distances in the ray diagrams of spherical lenses (convex lenses and concave lenses). Also read ...

This post presents a set of Lens Numericals for class 10 with questions and answers. We will solve these Lens numerical problems with the help of lens sign convention and ...

Here, in this post, we listed 2 rules for the formation of images by Concave Lens. After studying these, it will be easier to study the image formation by concave ...

Here, in this post, we listed 3 rules for the formation of images by Convex Lens. After studying these, it will be easier to study the image formation by convex ...

A lens that is thin in the middle and thick at the edges is called a concave lens. The most common form of a concave lens has both surfaces depressed ...

A lens that is thick at the center and thin at the edges is called a convex lens. The most common form of a convex lens has both surfaces bulging ...

In this post, we have briefly discussed the topic of Spherical Lenses for class 10. Here we have covered what are spherical lenses, the types of spherical lenses, important terms ...

In this post, we will find out what Spherical Mirror is. We will define a spherical mirror, list down the uses of this type of mirror, and discuss its sign ...

Two of the most common vision problems are myopia and hyperopia where images of objects are not properly focused on the retina of the human eyes. To understand these let's ...

Here we have a set of numerical problems based on Snell's Law from the chapter 'Light' of fundamental physics. This numerical set is a bit harder to solve but certainly ...

This Geometrical Optics Notes [PDF download] is primarily for the grade 10 and grade 11 syllabus of different international boards. This also covers the physics syllabus for class 9 to ...

Let's see how a light ray can be deviated by 180 degrees with the help of a prism. A total reflecting prism is used here to get a 180-degree deviation ...

Let's see how a light ray can be deviated by 90 degrees with the help of a prism. A total reflecting prism is used here to get a 90-degree deviation ...

What is a total reflecting prism? A right-angled isosceles prism that has a 90-degree angle and two 45-degree angles is known as a total reflecting prism. A total reflecting prism ...

One of the most interesting effects of atmospheric refraction occurs in the mirage, which is usually associated with hot deserts. Mirage is the result of atmospheric refraction and total internal ...

Optical fibres are used in medical endoscopes to see inside the body, and in communications to carry light signals. These fibres take the help of Total Internal Reflection of light ...

Diamonds sparkle when white light is directed at them - the optical phenomenon behind this is Total internal reflection of light rays. Let's discuss this in details. Diamonds sparkle when ...

Here in this post, you will get Ray Diagrams for Images formed by convex & concave lenses as a Quick Reference.Image formation by lenses is an interesting topic in the ...

Here in this post, you will get Ray Diagrams for Images formed by concave & convex mirrors as a Quick Reference.Image formation by spherical mirrors is an interesting topic in ...

This post will cover why the angle of deviation is different for different colours. We will also see how the deviation angle, refraction angle, and refractive index are interrelated and ...

Here we will discuss why violet is at the bottommost position of the spectrum made by the light emerging out of the prism on a white screen. This post is ...

In this post, we will learn what is meant by the dispersion of light. Then we will find out Why white light splits into seven colors when passing through a ...

Total Internal Reflection and Reflection are two different phenomena related to Light. Here we will talk about the difference between Reflection and Total Internal Reflection of light. Difference between Reflection ...

Critical Angle for the diamond-air interface The Critical Angle for the diamond-air interface is 24 degrees. This means if the ray of light in the diamond medium strikes the separating ...

The Critical Angle for the glass-air interface is 42 degrees. This means if the ray of light in the glass medium strikes the separating surface between glass and air making ...

List of Tutorials on Light chapter (class 9 and 10 Physics) with content headers. Click the links and read the posts/topics to learn more. List of Tutorials on Light (class ...

Snell's Law comes into action in the case of refraction of light, which is the change in direction of a light ray as it goes from one medium to another.As ...

In this post, we will just talk about some special features of prism that make it a suitable medium to test the refraction of light. Subtopics discussed: Glass Prism as ...

Compare Refraction through a rectangular parallel surfaced glass block and Refraction through a glass prism - a ray of light from the air when passes through a rectangular glass block ...

This post is going to explain the term Lateral Displacement of light which is related to the refraction of light. This phenomenon is observed when a ray of light gets ...

This post is on the total internal reflection and critical angle. Let's begin. What are the total internal reflection and critical angle? When a ray of light passes from denser ...

Refractive Index Numericals class 10 - In this post, we will solve a bunch of Numerical problems using the refractive index formulas (from the Light chapter in class 10 Physics) ...

Here you will find a list of materials with their Refractive Index or Absolute Refractive Index values. These are extracted from Refractive Index Table or chart. Refractive Index (µ) of ...

What is Refractive Index? When a ray of light passes from the first medium to the second medium, the refractive index of the second medium with respect to the first ...

Although light travels in straight lines in a transparent material, such as air, if it passes into a different material, such as water, it changes direction at the boundary between ...

Here is the list of characteristics of an image formed by a plane mirror.(i) The size of the image is the same as the size of the object.(ii) The distance ...

Refraction of light is a phenomenon where light bends while moving from one medium to another, right at the surface separating these two mediums. Because of this when a pencil ...