tabulate characters of image from different distances for concave and convex mirror
Answers
Answer:
A mirror is a surface which reflects a clear image. Images can be of two types: Real image and Virtual image. An image which can be formed on the screen is known as real image and the one which cannot be formed on screen is known as a virtual image. These images are formed when light falls on a mirror from the object and is reflected back by the mirror on the screen. There can be two types of mirror: Curved mirror and plane mirror. If a curved mirror is a part of a sphere then it is known as a spherical mirror. The image formed by a plane mirror is always a virtual image as it cannot be obtained on a screen. The image formed by the spherical mirror can be either real or virtual. Spherical mirrors are of two types:
Convex mirrors
Concave mirrors
Concave Convex Mirror
Concave Mirror
If a hollow sphere is cut into parts and the outer surface of the cut part is painted. Then it becomes a mirror with its inner surface as the reflecting surface This kind of mirror is known as a concave mirror. Light converges at a point when it strikes and reflects back from the reflecting surface of the concave mirror. Hence, it is also known as a converging mirror. When the concave mirror is placed very close to the object, a magnified and virtual image is obtained. But if we increase the distance between the object and the mirror then the size of the image reduces and a real image is formed. So the image formed by the concave mirror can be small or large and it can also be real or virtual.
Convex Mirror
If the other cut part of the hollow sphere is painted from inside, then its outer surface becomes the reflecting surface. This kind of mirror is known as convex mirror. A convex mirror is also known as a diverging mirror as this mirror diverges light when they strike on its reflecting surface. Virtual, erect and diminished images are always formed with convex mirrors, irrespective of the distance between the object and the mirror. Apart from other applications, the convex mirror is mostly used as a rearview mirror in vehicles.
Spherical mirrors are the mirrors having curved surfaces which are painted on one of the sides. Spherical mirrors in which inward surfaces are painted are known as convex mirrors while the spherical mirrors in which outward surfaces are painted are known as concave mirrors. Concave mirrors are also known as a converging mirror since the rays converge after falling on the concave mirror while the convex mirrors are known as diverging mirrors as the rays diverge after falling on the convex mirror. In this article, we will learn about image formation by concave and convex mirrors.
Answer:
- convex mirror-the image does not get inverted, it's erect
- the image is bulged near the centre which makes the image look bulged out and makes it bigger
- concave mirror-the image gets inverted
- the image is bulged in the inside making the image smaller