# How is Focal Length related to Radius of Curvature? - A.

If the focal length of a convex mirror is 12.5 cm, its radius of curvature will be: 20 cm. 6.25 cm. 25 cm. 30 cm. 9) Which one of the following focus is situated behind the mirror? Plane mirror. Concave mirror. Convex mirror. Shaving mirror. 10) A convex spherical mirror has a focal length of -15 cm. The image is formed 7.5 cm behind the mirror. Where is the object located? 15 cm in front of.

The focal length of a convex mirror can be determined by introducing a convex lens between the object and the convex mirror. An image can be obtained with the help of a convex lens side by side with the object when the convex mirror reflects the rays along the same path, i.e., when the rays fall normally on the mirror. Then, the radius of curvature, R, of the mirror is the distance between the. An object, 12 cm tall, is placed 8.0 cm in front of a convex mirror with a radius of curvature of 7.0 cm. Use the mirror formula to determine the position and height of the image. asked by Edmonds on May 23, 2017; physics. The radius of curvature of a convex mirror is 1.60 x 102 cm. An object that is 11.0 cm high is placed 40.0 cm in front of. Thin lens approximation. For a thin lens in air, the focal length is the distance from the center of the lens to the principal foci (or focal points) of the lens.For a converging lens (for example a convex lens), the focal length is positive, and is the distance at which a beam of collimated light will be focused to a single spot. For a diverging lens (for example a concave lens), the focal. From the calculations in this problem it can be concluded that if a 4.0-cm tall object is placed 35.5 cm from a convex mirror having a focal length of -12.2 cm, then the image will be upright, 1.02-cm tall and located 9.08 cm behind the mirror. The results of this calculation agree with the principles discussed earlier in this lesson. Convex mirrors always produce images that are upright. From the calculations in this problem it can be concluded that if a 4.0-cm tall object is placed 35.5 cm from a concave mirror having a focal length of 12.2 cm, then the image will be upright, 1.02-cm tall and located 9.08 cm behind the mirror. The results of this calculation agree with the principles discussed earlier in this lesson. Convex mirrors always produce images which are upright. A convex lens (of focal length 20 cm) and a concave mirror, having their principal axes along the same lines, are kept 80 cm apart from each other. The concave. A concave mirror with focal length 17.0 cm is placed 38.0 cm to the left of the object.A convex lens of focal length 18.0 cm is placed 54.0 cm to the right of the object.Where is the image formed by both the mirror and the lens? A) 13.9 cm to the right of the object B) 25.5 cm to the right of the lens C) 67.9 cm to the right of the object D) 43. Question: A Concave Makeup Mirror Is Designed So That A Person 25 Cm In Front Of It Sees An Upright Image Magnified By A Factor Of 2. What Is The Focal Length Of The Concave Mirror? A. 25 Cm B. 50 Cm C. 75 Cm D. 100 Cm E. 130 Cm How Far From A 15 Cm Focal Length Convex Mirror An Object Needs To Be To Produce A Virtual Image At 10 Cm From The Mirror? A drop of water on a countertop reflects light from a flower held 3.0 cm directly above it. The flower’s diameter is 2.0 cm, and the diameter of the flower’s image is 0.10 cm. What is the focal length of the water drop, assuming that it may be treated as a convex spherical mirror? An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed. The lens considered in the question is converging lens which is the convex lens. A convex mirror has a focal length of -27 cm. Find the magnification produced by the mirror when the object distance is: (a)8 cm (b)17 cm. Convex Mirror: A Convex Mirror is a one which has the. A 25 cm focal length mirror has a 3.0 cm tall object placed 20 cm in front of it. What is the size of the image and is it upright or inverted? A) 1.0 cm, upright B) 3.8 cm, inverted C) 2.4 cm, inverted D) 15 cm, upright E) 12 cm, upright 24. A mirror has a focal length -20 cm. If an object is placed 10 cm in front of the mirror, where will the.

## How is Focal Length related to Radius of Curvature? - A.

It’s always 2 times the focal length, if using paraxial approximation.

A 3.0 cm object is 12.0 cm from a convex mirror that has a focal length of 20.0 cm. - 9495416.

Correct answers: 1 question: Suppose a convex mirror has a focal length of 120 cm. a candle sits directly in front of the mirror. if the image of that candle appears to be 24 cm behind the mirror, how far is the candle from the surface of the mirror? a. 30 cm b. 36 cm c. 150 cm d. 600 cm.

A convex mirror of radius of curvature 70 cm and a plane mirror are placed facing each other. The distance between them is 28 cm. A point object is put midway between them on the principle axis of the mirror. Two images of the object are seen in the plane mirror. Find their distances from the plane mirror.

Jun 04,2020 - A convex lens (of focal length 20 cm) and a concave mirror, having their principalaxes along the same lines, are kept 80 cm apart from each other. The concavemirror is to the right of the convex lens. When an object is kept at a distance of 30cm to the left of the convex lens, its image remains at the same position even if theconcave mirror is removed.

Determine the focal length of a convex mirror that produces an image that is 16.0 cm behind the mirror when the object is 28.5 cm from the mirror. -37.0 True or False.