The focal length of spherical mirrors. Ask Question Asked 1 year, 11 months ago. Principal section. How to swap two numbers without using a temporary variable? For a spherical mirror, the focal length is equal to ____ the radius of curvature of the mirror. So PF = f. Test Your Understanding and Answer These Questions: The centre of curvature of a spherical mirror is the centre of the hollow glass sphere of which the mirror is a part. Please use ide.geeksforgeeks.org, generate link and share the link here. That behavior is not affected by the medium in which the light travels, so the mirror's focal length would be no different in air or water. There are two types of spherical mirrors: concave and convex mirror.In this article, we will be studying the spherical mirrors structure and its different types in detail. Give the relationship between focal length and radius of curvature of a spherical mirror. The radius of curvature of a spherical mirror is the radius of the hollow glass sphere of which the mirror is a part, The principal focus of a spherical mirror is a point on the principal axis of the spherical mirror at which, the light rays which are parallel to the principal axis actually converge (meet) or appear to diverge after reflection. It … In order to determine the focal length of a spherical mirror we should know the radius of curvature of that mirror. A section of the spherical mirror cut by a plane passing through its centre of curvature and the pole, is called a principal section of the mirror. A one-third B one-fourth. The distance from the vertex to the center of curvature is called radius of curvature. Mirrors, spherical or otherwise, operate on the principle that the angle of reflection of a ray of light equals the angle at which it strikes the mirror's surface. It may be defined as that portion of a spherical mirror from which the reflection of light is actually taking place. The focal length of the mirror in liquid will be: View Answer A square of side 3 c m all is located at a distance 2 5 c m from a concave mirror of focal length 1 0 c m . Relevance. C the square of D one-half. 1 decade ago . See your article appearing on the GeeksforGeeks main page and help other Geeks. The focal length, f, is: focal length of a spherical mirror : f = R / 2 This is actually an approximation. We use cookies to ensure you have the best browsing experience on our website. The focal length of a spherical mirror is the distance of principal focus from the pole of the mirror. Lv 4. Focal Length of Spherical Mirrors. acknowledge that you have read and understood our, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Write a program to print all permutations of a given string, Set in C++ Standard Template Library (STL), Program to find GCD or HCF of two numbers, Efficient program to print all prime factors of a given number, Find minimum number of coins that make a given value, The Knight's tour problem | Backtracking-1, Euclidean algorithms (Basic and Extended), Count all possible paths from top left to bottom right of a mXn matrix, Segment Tree | Set 1 (Sum of given range), Merge two sorted arrays with O(1) extra space, Program to find whether a no is power of two, Median in a stream of integers (running integers), Check if a number is prime in Flipped Upside Down, Mirror Flipped and Mirror Flipped Upside Down, Program for triangular pattern (mirror image around 0), Program to print mirror image of Swastika Pattern, Program to Print Mirror Image of Sine-Wave Pattern, Program to determine the quadrant of the cartesian plane, Program to determine the octant of the axial plane, Program to determine the Quadrant of a Complex number, Lexicographically smallest permutation of a string that can be reduced to length K by removing K-length prefixes from palindromic substrings of length 2K, Check if mirror image of a number is same if displayed in seven segment display, Check if the given array is mirror-inverse, Determine whether a given number is a Hyperperfect Number, Determine the count of Leaf nodes in an N-ary tree. The focal length of a spherical mirror is the distance of principal focus from the pole of the mirror. The distance from the vertex to the center of curvature is called radius of curvature. Its always ONE HALF so option D is correct. 1 decade ago. The focal length of a spherical mirror is the distance of principal focus from the pole of the mirror. Focal length is the distance between the center of the mirror to the principal foci. The focal length of a spherical mirror is represented by letter ‘f’. The principal focus of a spherical mirror is represented by letter F. In the case of concave mirror all the light rays which are parallel to the principal axis meet at point F after reflection. It is represented by the symbol f. For mirrors of small aperture, f=R/2. By using our site, you
(b) C is the centre of curvature of concave mirror and convex mirror respectively. Don’t stop learning now. Write a program to determine the focal length of a spherical mirror. The focal length is half the radius of curvature. brightness_4 The principal focus of a spherical mirror is a point on the principal axis of the spherical mirror at which, the light rays which are parallel to the principal axis actually converge (meet) or appear to diverge after reflection.

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