What is the minimum number of rays required for locating the image formed by a concave mirror for an object? Draw a ray diagram to show the formation of a virtual image by a concave mirror.
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Answers
Answer:
A minimum of two rays are required for locating the image of an object formed by a concave mirror.
When an object is placed between the focus and the pole of a concave mirror, a virtual image is formed
Explanation
A concave mirror is a mirror that is curved inward in the middle. It is also known as converging mirrors, due to the fact that when parallel incident rays fall on the surface of the mirror, the rays will reflect and meet at a particular point and form the
image.
Depending on the position of the object with respect to the mirror, the types of images it forms are real, inverted as well as virtual and erect image, also the size of the images formed are magnified, diminished as well as the same size as that of the object.
Tip- The object must be placed between the mirror and the focus point in order for a virtual image to be formed by a concave mirror.
When an object is placed between the concave mirror's focus and pole, a virtual picture is created
Explanation: The incident ray travelling through the optical centre is refracted parallel to the major axis, while the incident ray passing through the focus retraces its route after refraction. Behind the mirror, the two beams appear to converge, generating a virtual, erect picture.
The least number of rays required for locating the image created by a concave mirror for an item is two.
