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 :

Why is the image inverted at 30cm away from the mirror?

Since the object is further out than the focal point (which would be 30cm away from the mirror) the image will be inverted (and magnified with M=-1.5 in this case, since the object is still in the distance of two focal lengths to the mirror).

What is the image height of the mirror image?

The image height is 10 cm. The positive sign indicates that the image is real or the image is 20 cm in front of the mirror, on the same side as the object. The negative sign means the image is inverted. The plus sign indicates that the image is real or the image is 15 cm in front of the mirror, on the same side as the object.

How do you find the distance between an image and object?

The distance between object and image = 5 meters. Solution : The size of the image produced by a convex mirror is always smaller than the size of the object, therefore, the mirror is a concave mirror. Object distance (d) = x. Image distance (d’) = x + 5. Image magnification (M) = 5 times.

What happens when the radius of curvature of a mirror increases?

In the limit, when the radius of curvature increases without limit, i.e. “approaches infinity,” the curvature approaches zero and the surface becomes flat. This is a useful convention for calculating image distances. Let o be the object distance, i the image distance, and f the focal length of the mirror (which is half the radius of curvature).

What is the formula to find the length of a mirror?

The mirror formula is 1 v + 1 u = 1 f, where v, u and f are the distances of the image and object from the mirror and the focal length respectively. As per the new Cartesian convention, distances in the direction of the object are negative and the distances on the other side of the mirror are positive.

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What happens to the image when you cross the focal length?

As you cross the focal length, the image crosses from + infinity to imaginary infinity (or a virtual infinity). From there on in, the image is virtual and moves in until the object is at the mirror and the virtual image is the same size as the object and just inside the mirror.

What is the formula to find the distance of a mirror?

The mirror formula is 1 v + 1 u = 1 f, where v, u and f are the distances of the image and object from the mirror and the focal length respectively. As per the new Cartesian convention, distances in the direction of the object are negative and the distances on the other side of the mirror are positive. Further, distances above the principal axis

What happens to an object placed at a distance of 10cm?

A point object is placed at a distance 10cmand its real image is formed at a distance of 20cmfrom concave mirror. If the object is moved by 0.1cmtowards the mirror, the image will shift by about

What happens when an object is placed 50 cm from a lens?

An object is placed 50 cm from a lens produces a virtual image at a distance of 10 cm in front of the lens. Draw a diagram to show the formation of image and calculate the focal length of the lens. > An object is placed 50 cm f… An object is placed 50 cm from a lens produces a virtual image at a distance of 10 cm in front of the lens.

What type of image is formed when a lens is converged?

Answer: ADFG. Converging lenses produce both real images formed on the opposite side of the lens (when the object is placed beyond F) and virtual images formed on the same side of the lens (when the object is placed in front of F).