Image Distance and Size:Convex mirrors always produce virtual images closer to the mirror than the object. The image formed by a convex mirror appears diminished or smaller than the object. This reduction in image size allows a greater expanse of the reflected scene to be captured within the mi...
The reverse telephoto lens has a relatively short focal length and a long working distance, and is used when it is necessary to insert another element, such as a mirror, between the lens and the image plane. Many objectives, especially short focal length objectives, for 35-mm cameras are ...
A smaller lens ("fast" lens) introduces significantly more aberrations than a larger lens ("slow" lens). The shape of the lens becomes very important when it is below about f/10 and should be considered as a substitute for spherica...
a) Larger object distance ...cm b) Smaller object distanc A concave spherical mirror has radius of curvature of magnitude 18.6 cm. a)Determine the object position for which the resulting image is inverted and larger than the object by a factor of 7.00. b)Dra Lenses used in ey...
shape of a concave lense is round inward that bends the beams outward, causing divergence of the rays of light falling on it, so it is known as a diverging lens. This also makes the object look smaller and farther than they really are and the image formed is virtual, diminished and ...