## How many diagrams does a convex lens have?

To summarise

Position of the object Position of the image Nature of the image
At 2F 1 At 2F 2 Real and inverted
Between F 1 and 2F 1 Beyond 2F 2 Real and inverted
At focus F 1 At infinity Real and inverted
Between focus F 1 and optical Center O On the same side of the lens as the object Virtual and erect

## What is convex on converging lens explain by diagram?

All the light rays, after passing through the convex lens, converge (come together) at the same point F on the other side of the lens. The point F is called the principal focus of the convex lens. A convex lens is known as converging lens because it converges a parallel beam of light rays.

What are the difference between concave lens and convex lens with a diagram?

The lens is understood as a curved and transparent piece of glass or plastic, which focuses and refracts light rays in a certain manner. The curvature of the object ascertains the extent to which light is bent and in which direction….Comparison Chart.

Basis for Comparison Convex Lens Concave Lens
Light Converges Diverges

What is formula of convex lens?

1. What is the Lens Formula for Convex Lens? According to the Convex Lens equation, 1/f = 1/v + 1/u. It relates the Focal Length of a Lens with the distance of an object placed in front of it and the image formed of that object.

### What is convex lens short answer?

An optical lens is generally made up of two spherical surfaces. If those surfaces are bent outwards, the lens is called a biconvex lens or simply convex lens. These types of lenses can converge a beam of light coming from outside and focus it to a point on the other side.

### What is convex lens class 7th?

Convex lens are thicker in middle than the edges whereas concave lens are thinner at the middle than at the edges. Lenses are transparent and light can pass through them. Convex lens are also called convergent as they concentrate (bend inward) the light falling on it.

What are the characteristics of an image formed by a convex lens?

Solution : Characteristics of image formed by the convex lens : (i) The image will be on the same side of the lens as the object ( as the object is between `F_(1) and ` O). (ii) It will be enlarged . (iii) It will be virtual . (iv) It will be erect .

What are the differences between the images formed by convex and concave lenses?

Generally, a convex lens forms a real image, but it can also create a virtual image when the object is in the middle of the focus and optical centre. On the contrary, the image formed by the concave lens is erect, virtual and smaller, than the object.

## What is difference between convex and concave?

The basic difference between concave and convex are as follows: Concave describes a shape that curves inwards. The sideview mirror of a car, which curves inwards, is a good example of a concave shape. Convex describes a shape that curves outwards.

## What are the three difference between a convex and a concave lens?

They are used in spectacles, microscope and telescopes. Based on the shape, the lens can be grouped as a convex lens or concave lens….Comparison Chart.

Basis for Comparison Convex Lens Concave Lens
Focal length Positive Negative
Image Real and inverted image. Virtual, erect and diminished image.

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