How can you tell if a mirror is concave and convex by touching?
Yes, we can distinguish between concave and convex mirrors without touching them. As we know that in a concave mirror the size of the image formed is enlarged w.r.t. the real image. And in the convex mirror the size of the image formed is diminished w.r.t. the real image.
How will you distinguish between a convex and concave lens without touching them?
Answer: If the curved surface is bulging outwards then it’s convex lens and if the curved surface is curved inwards then it’s concave lens.
How will you distinguish among plane mirror convex mirror and concave mirror by touching them?
We can distinguish between a plane mirror, a concave mirror and a convex mirror by bringing our face close to each mirror, turn by turn. If the image is of the same size as our face, it is a plane mirror. If the image is magnified, it is a concave mirror. If the image is diminished, it is a convex mirror.
How do you know if a lens is concave?
Concave lens can be identified as the lens which disperses the light rays around, that hits the lenses. Thicker at the center, as compared to its edges. Thinner at the center as compared to its edges. Real and inverted image.
How can we identify the lens without touching?
Without touch we can identify two different lenses by looking at the size of the newspaper letters under the lens. If the image of the letters is large then it is a convex lens because the convex lens produces a larger image.
How can you identify a plane concave and convex mirror by observing image formation?
They can be identified by observing the nature of image of our face.
- Plane mirror – produces virtual, erect image of the same size as our face.
- Concave mirror – produces virtual, erect and magnified image of our face.
- Convex mirror – produces virtual, erect and diminished image of our face.
How do you identify a convex lens?
The structure of convex lens is like, thicker at the centre and thinner at the edges. Conversely, the concave lenses are thinner at the centre and thicker at its edges, in structure. The focal length of a convex lens is positive, while that of a concave lens is negative.
How do you distinguish between concave and convex?
What is the difference between Concave and Convex mirror?
| Concave mirror | Convex mirror |
|---|---|
| Spherical mirrors whose inner side is reflecting are called concave mirrors. | Spherical mirrors whose outer side is reflecting are called convex mirrors. |