A concave mirror of focal length 10 cm forms an upright and diminished image of an object placed at a distance of 10 cm from mirror.
It would be false right?
I meant "at a distance of 5 cm from the mirror."
Yes, you are correct. The statement is false.
To understand why, let's break down the information stated in the question. The focal length of the concave mirror is given as 10 cm. This means that parallel rays of light that are incident on the mirror will converge at a point 10 cm away from the mirror (known as the focal point).
The question states that the mirror forms an upright and diminished image of an object placed at a distance of 10 cm from the mirror. This implies that the object is located at the focal point. However, for a concave mirror, when the object is placed at the focal point, the reflected rays are parallel and do not converge to form an image. Therefore, in this scenario, no image would be formed.
In order for a concave mirror to form an upright and diminished image, the object must be placed beyond the focal point. When the object is located between the focal point and the mirror, the image formed is virtual, upright, and magnified.