Reason : A concave mirror of focal length f in air is used in a medium of refractive index 2. Then the focal length of mirror in medium becomes 2f. View Solution Recommended Questions Concave & Convex Mirror||Focal Length||Mirror Formula 01:01:35 An object is placed midway between a ...
A convex lens forms a real and inverted image of a pencil at a distance of 40 cm from the lens. The image formed is of the same size as the object Find the focal length and power of the lens. At what distance is the : object placed from the lens?
The principal focus is in front of the concave mirror and is behind the convex mirror. Focal length: The focal length (denoted by FP in the fig.) is the distance between the pole P and the principal focus F of a curved mirror. The focal length is half the radius of curvature. Focal...
An object is placed 13.3 cm away from a convex mirror with a focal length of magnitude 7.00 cm. (a) Is the sign of the focal length negative or positive? (b) Find the image distance q. A concave, spherical mirror and a thin, converging lens are both measured in air (n =...
Testing the optical figure and focal length of laser mirrors with radii of curvature in the 10 to 100 m range is difficult. If the mirror is concave, a source can be placed at the center of curvature. Air turbulence over these long path lengths makes interferometry difficult, however, and ...
Step 1: Understand the mirror equation for a convex mirror. The mirror equation is given by , where is the focal length, is the object distance, and is the image distance. Step 2: Solve the mirror equation for the image distance . Rearrange the equation to ...
The focal length is positive for concave mirrors and negative for convex mirrors. A concave mirror can form different image characteristics depending on the position of the object. If the object is beyond the center of curvature, the image formed is real (in front of the mirror), inverted, ...
The image formed by concave mirror is always real except when the object is placed between pole and focus. The image formed by the convex mirror is always virtual. The radius of curvature is double of magnitude focal length.Answer and Explanation: ...
The focal length of a simple converging (convex) lens can be measured by focusing the rays from the sun to the smallest point possible and measuring the distance from the image to the lens.Face Device Iris Device This is a preview of subscription content, log in via an institution to ...
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