💬 NUMERICAL PROBLEMS BASED ON CONVEX MIRRORS In order to solve the...

Title: NUMERICAL PROBLEMS BASED ON CONVEX MIRRORS In order to solve the numerical problems based on convex mirrors, we should remember that the mirror formula for a convex mirror is the same as that for a concave mirror, which is : 1 by v + 1 by u + 1 by f. where v = image distance u = object distance and f = focal length Please note that since a convex mirror always forms an image behind the mirror (on the right side of the mirror), therefore, the image distance (v) in the case of convex mirrors is...
Full Transcript: NUMERICAL PROBLEMS BASED ON CONVEX MIRRORS In order to solve the numerical problems based on convex mirrors, we should remember that the mirror formula for a convex mirror is the same as that for a concave mirror, which is : 1 by v + 1 by u + 1 by f. where v = image distance u = object distance and f = focal length Please note that since a convex mirror always forms an image behind the mirror (on the right side of the mirror), therefore, the image distance (v) in the case of convex mirrors is always positive. The object is always placed to the left of mirror, so the object distance (u) is always taken with a negative sign. The focus of a convex mirror is behind the mirror on its right side, therefore, the focal length of a convex mirror is always taken as positive. The two magnification formulae for convex mirror are also just the same as that for a concave mirror. That is : Here, Object distance, u = – 10 cm, Image distance, v = + 6 cm, Thus, the position of image is 6 cm behind the convex mirror. Since the image is formed behind the convex mirror, its nature will be virtual and erect. To find the size of image, we will calculate the magnification first. , Now, Magnification, m = - v by u, So, m = - +6 by (– 10) M = 6 by 10, Magnification, m = 0.6 We also have another formula for magnification, which is : So, + 0.6 = h2 by +5 h2 = 5 × 0.6 Height of image, h2 = 3 cm (or + 3 cm) Magnification, m = 0.6
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NUMERICAL PROBLEMS BASED ON CONVEX MIRRORS In order to solve the numerical problems based on convex mirrors, we should remember that the mirror formula for a convex mirror is the same as that for a concave mirror, which is : 1 by v + 1 by u + 1 by f. where v = image distance u = object distance and f = focal length Please note that since a convex mirror always forms an image behind the mirror (on the right side of the mirror), therefore, the image distance (v) in the case of convex mirrors is...