Is a spoon concave?

The inner surface of a spoon acts like a concave mirror, while its outer surface acts like a convex mirror. We know that the image of an object formed by a plane mirror cannot be obtained on a screen.

What type of mirror is a spoon?

Note: The inner surface of a spoon acts like a concave mirror , while its outer surface acts like a convex mirror.

Why do spoons invert the image?

Unlike a flat mirror, the curved surface of the spoon’s bowl bounces incoming rays back towards a central focus point lying between your face and the centre of the spoon’s. In passing through this point, rays from the upper part of your face are reflected downward, while those from the lower part are reflected upward.

What type of image is formed by the concave side of the spoon?

inverted
On the other hand, the concave side of the spoon acts like a concave mirror. If the spoon is held at arm’s length, the object (you) is farther from the reflecting surface than the center of curvature. As a result, a real image is formed that is inverted and reduced in size with respect to the object.

How does your reflection appear on concave and convex side of the spoon mirror?

Since the surface is completely smooth, it gives a mirror image – a specular reflection. But since it’s curved, the rays of light are reflected in different directions depending on where they hit the spoon. A convex mirror makes what you see smaller and more so as you look closer to the edges.

How did you identify the concave side of the spoon?

If you look in a normal mirror, everything that hits the mirror comes back to you the right way up in a straight line. If it goes into a spoon, which is concave – going inwards – the light comes back to you at an angle. The top of the spoon will reflect downwards and the bottom of the spoon will reflect upwards.

Is a spoon reflection or refraction?

Metal spoons are both convex (curves out) and concave (curves in) mirrors. When you see an image in a flat mirror, the light waves bounce straight back at you. This is called reflection. But when curved, a mirror bends the light rays and distorts the image; this is called “refraction.”

Why does your reflection on the concave and convex sides of a spoon looks different?

Which side of the spoon is considered as convex mirror?

back side
A: The curved surfaces of a spoon act like mirrors. The front part of the spoon is concave while the back side of the spoon is convex.

Is your image upright or inverted as seen in the concave side of the spoon?

The front (concave) side of the spoon behaves as a concave mirror with quite a short focal length (e.g. 10–20 mm). If you look at yourself in this mirror from further away than that, the mirror forms an inverted real image, which is what you see.

How does a concave mirror work?

A concave mirror has a reflective surface that is curved inward and away from the light source. Concave mirrors reflect light inward to one focal point. Unlike convex mirrors, the image formed by a concave mirror shows different image types depending on the distance between the object and the mirror.

Is a spoon a concave or convex mirror?

If the reflecting surface of a spherical mirror is concave, it is called a concave mirror. If the reflecting surface is convex, then it is a convex mirror. The inner surface of a spoon acts like a concave mirror, while its outer surface acts like a convex mirror.

How to use a spoon as a mirror?

Now look at your image using the inner side of the spoon. This time you may find that your image is erect and larger in size. If you increase the distance of the spoon from your face, you may see your image inverted. You can also compare the image of your pen or pencil instead of your face. The curved shining surface of a spoon acts as a mirror.

Can the image formed by a concave mirror be obtained on screen?

The inner surface of a spoon acts like a concave mirror, while its outer surface acts like a convex mirror. We know that the image of an object formed by a plane mirror cannot be obtained on a screen. Let us investigate if it is also true for the image formed by a concave mirror.

What is the most common example of a curved mirror?

The most common example of a curved mirror is a spherical mirror. If the reflecting surface of a spherical mirror is concave, it is called a concave mirror. If the reflecting surface is convex, then it is a convex mirror. The inner surface of a spoon acts like a concave mirror, while its outer surface acts like a convex mirror.