[" 5.An image of a candle on a screen is found to be double its size.When the "],[" candle is sifted by a distance of "5cm" ,then the image becomes triple its sime."],[" Find the nature and radius of curvature of the mirror."]

An image of a candle on a screen is found to be double its size. When the candle is shifted by a distance of 5cm, then the image becomes triple its size. Find the nature and radius of curvature of the mirror.

An image of a candle on a screen is found to be double its size. When the candle is shifted by a distance of 5cm, then the image becomes triple its size. Find the nature and radius of curvature of the mirror.

An object of height 3 cm is placed at 9 cm from a concave mirror. The height of its real image is 9 cm. Find the image distance and the radius of curvature of the mirror.

The image of the flame of a candle due to a mirror is formed on a screen at a distance of 9cm from the candle. The image is magnified 4 times. Determine the nature, position and focal length of the mirror.

A convex lens produces an image of a condle flame upon a screen whose distance from candle is D. When the lens is displaced through a distance x , (the distance between the candle and the screen is kept constant), it is found that a sharp image is again produced upon the screen. Find the focal length of the lens in terms of D and x .