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.
Explanation:
When a hollowed ball is split into parts, and the exterior surface of each cut portion is painted, it forms a concave mirror that has the inside reflecting the light. A concave mirror is a term for this sort of mirror. Light converges at a spot where it strikes and mirrors off the concave mirror reflecting surface. Due to this, it is also known as a converging mirror.
1.the characteristics of image
Concave Mirrors Have the following essential specifications:
Before reflection, the concave mirror catches and converges the light incident.
When an object is placed very close to the concave mirror, it creates a virtual and enlarged image.
As the length between the item and the concave mirror increases, a true image is created, and the picture size shrinks.
Concave mirrors can create big, tiny, upright, or virtual images.
2. shifted the object away from or towards the mirror.
When the object is placed beyond the centre of curvature
The item emits two rays, one of which is parallel to the principal axis and the other of which moves towards the mirror’s centre of curvature. After reflection, the image is generated between the centre of curvature C and the focus F. The image that is created is diminished, reversed, and real.
When the object is positioned at the centre of curvature
The object sends out two rays. One ray runs parallel to the principal axis while the other penetrates through the focus. At the centre of curvature, the picture is generated after reflection. The resulting image is the same size as the original; it is real and inverted.
When the object is placed between the centre of curvature and focus
The object emits two rays. One ray is parallel to the principal axis, while the other crosses through the mirror’s focus. This is the image formed at the mirror’s centre of curvature C. The image is magnified; it is both real and inverted.
3. Size of the image during this shift in the position of the object
A significantly expanded image at infinity is generated when the object is positioned at a concave mirror’s principal focus (F).
Image characteristics: a really large image
Both real and reverse
The object is always positioned on the mirror’s left side.
All the distances are determined parallel to the principal axis from the mirror’s pole.
All lengths determined to the right of the origin (+ x-axis) are positive, while those determined to the left (– x-axis) are negative.
Positive distances are determined perpendicular to and above the major axis (along The y-axis).
Lengths determined perpendicular to and below the primary axis (along the –y-axis) are considered negative.
4. Draw suitable ray diagrams for both the magnifications
