What is the size of the image formed by a concave mirror when the object is placed at C?
What is the size of the image formed by a concave mirror when the object is placed at C?
The Object is Placed at C Here the two rays emerging from the object are one parallel to the principal axis and other passing through the focus of the mirror. These rays after reflection from an image at point C. the image formed has the same size as that of the object and it is real and inverted.
What is the focal length of a concave mirror whose radius of curvature is 12 cm?
focal length f of concave mirror = 1/2 of radius of curvature = 12/2 = 6 cm .
How do you find the distance of an image in a concave mirror?
- The mirror formula is 1f=1v+1u.
- The magnification m is given by m=−vu.
- According to sign conventions, for a concave mirror, the focal length (f) is negative, the object distance (u) is negative, the image distance (v) is positive for a virtual image and negative for a real image.
What is the focal length of concave mirror?
Focal length – Focal length of the concave mirror is the distance between the pole P of concave mirror and the focus F. By obtaining the Real image of the distant object, the focal length of concave mirror can be determined, as shown in the diagram.
What is concave mirror Class 10?
1)Concave Mirror:A spherical mirror whose reflecting surface is curved inwards ie faces towards the centre of sphere.
What is the focal length of a concave mirror whose radius of curvature is 25 cm?
So, the focal length will be “12.5 cm”.
How do you find the focal length of a concave mirror?
By obtaining the Real image of a distant object at its focus, the focal length of the concave mirror can be estimated as shown in the diagram. The focal length of the convex mirror is positive, whereas that of the concave mirror is negative. The same can also be proved by using the mirror formula: (1/f = 1/v +1/u).
How do you find the focal length and image distance?
- To calculate the image distance, the lens formula can be used.
- 1/u+1/v=1/f.
- where.
- u is the object distance.
- v is the image distance.
- f is the focal length of the lens.
- If you know the focal length and object distance, using the above formula image distance can be calculated.
What is the focal length of mirror?
The focal length ( f ) is the distance from a lens or mirror to the focal point ( F ). This is the distance from a lens or mirror at which parallel light rays will meet.