What is the position of the image formed when an object of size 1 cm is placed at a distance of 30 cm from a concave mirror of focal length 10 cm?
The image is formed at a distance 30cm on the side of the object. Negative sign indicates that object and image are on the same side.
When an object is placed at a distance of 15 cm from a convex mirror?
An object is placed at a distance of 15 cm from a convex lens of focal length 10 cm. On the other side of the lens, a convex mirror is placed such that its distance, from the lens, equals the focal length of the lens. The image formed by this combination is observed to coincide with the object itself.
What would be the size of the image formed if the object is 2 cm high?
The size of the image formed if the object is 2 cm high is the same as that of the size of the object.
How will the image formed by a convex lens be affected if the central portion of the lens is wrapped in black paper as shown in the figure?
In the convex lens the rays are converted to a point on the other side lens when the parallel rays are incident on the surface of the lens. If the central portion of the lens wrapped by black paper, full image will be form but with a less brightness.
How do you find the focal length of a concave lens?
Focal length, f = +10 cm (convex lens); Therefore, the image is real, inverted, 30 cm from the lens, on the opposite side of the object and magnified 2 times. An object of height 6 cm is placed at a distance of 20 cm from a concave lens. Its focal length is 10 cm. Find the position and size of the image.
How do you find the distance of an object from a lens?
Object distance, u = +15 cm (real object); Focal length, f = +10 cm (convex lens); Therefore, the image is real, inverted, 30 cm from the lens, on the opposite side of the object and magnified 2 times. An object of height 6 cm is placed at a distance of 20 cm from a concave lens.
What is the distance in front of a concave mirror?
An image an by a concave mirror is 4 times greater than the object. If the radius of curvature 20 cm, determine the object distance in front of the mirror! The object distance = 12.5 cm. 4. A 1-cm high object is placed 10 cm from a concave mirror with the focal length, f = 15 cm. Determine :
What is an object of height 6 cm?
> An object of height 6 cm is… An object of height 6 cm is placed perpendicular to the principal axis of a concave lens of focal length 5 cm. Use lens formula to determine the position, size and nature of the image if the distance of the object from the lens is 10 cm. Was this answer helpful?