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An object is placed 15 cm from a mirror and an image is captured on the screen with magnification 2. Calculate the focal length of the mirror and determine if it is concave or convex. An object is placed 15 cm from a mirror and an image is captured on the screen with magnification 2. [...]

A boy of length 6 cm is placed 10 cm from a concave mirror of focal length 20 cm. Find the position, size, and nature of the image. A bocy of length 6 cm is placed 10 cm from a concave mirror of focal length 20 cm. Find the position and nature of the image. [...]

A particle moves in a circular path of radius 5 cm in a plane perpendicular to the principal axis of a convex mirror with radius of curvature 20 cm. The object is 15 cm in front of the mirror. A particle moves in a circular path of radius 5 cm in a plane perpendicular to [...]

State the following statements as True of False. (a) A convex mirror cannot form a real image for a real object. (b) The image formed by a convex mirror is always diminished and errect. State the following statements as True of False. (a) A convex mirror cannot form a real image for a real object. [...]

In figure, a plane mirror is moving with uniform speed of 5 m/s along negative x direction and observer O is moving with velocity of 10 m/s. What is the velocity of image of a particle P, moving with a plane mirror is moving with uniform speed of 5 m/s along negative x direction and [...]

An object moves with 5 m/s toward right while the mirror moves with 1 m/s toward the left as shown in figure. Find the velocity of image. An object moves with 5 m/s toward right while the mirror moves with 1 m/s toward the left as shown in figure. Find the velocity of image. October [...]

Find the region on Y axis in which reflected rays are present. Object is at A ( 2, 0 ) and MN is a plane mirror, as shown in figure. 0 ) and MN is a plane mirror as shown in figure Find the region on Y axis in which reflected rays are present. Object [...]

A man is standing at distance x from a plane mirror in front of him. He wants to see the entire wall in mirror which is at distance y behind the man. Find the minimum size of the mirror required. A man is standing at distance x from a plane mirror in front of him. [...]

Two plane mirrors are inclined at an angle of 60 as shown in figure. A ray of light parallel to M1 strikes M2. At what angle will the ray finally emerge? Two plane mirrors are inclined at an angle of 60 as shown in figure. A ray of light parallel to M1 strikes M2. At [...]

If A, B and C are interior angles of a triangle ABC, then show that sin(2/B+C) = cos 2/A. B and C are interior angles of a triangle ABC If A then show that sin(2/B+C) = cos 2/A. October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,