[" 6.A convex lens of focal length "30cm" is placed "],[" between a sereen and a square plate of area "4cm^(2)" ."],[" The image of the plate formed on the screen is "],[16cm^(2)" .Calculate the distance between the plate "],[" and the screen."]

A convex lens of focal length 30 cm is placed between a screen and a square plate of area 4cm^(2) . The image of the plate formed on the screen is 16cm^(2) . Calculate the distance between the plate and the screen.

A convex lens of focal length 20 cm is placed at a distance of 30 cm from a screen. Where should an object be placed so as to form its real image on the screen?

A convex lens forms an image of an object on a screen ,The height of the image is 9cm The lens is now disiplaced between the object on the screen.the height of this image is 4cm .the distance between the object and the screen is 90cm

A convex lens forms an image of an object on a screen. The height of the image is 9 cm . The lens is now displaced until an image is again obtained on the screen. Then height of this image is 4 cm . The distance between the object and the screen is 90 cm.

A convex lens forms an image of an object on a screen. The height of the image is 9 cm . The lens is now displaced until an image is again obtained on the screen. Then height of this image is 4 cm . The distance between the object and the screen is 90 cm.

A convex lens forms an image of an object on a screen. The height of the image is 9 cm . The lens is now displaced until an image is again obtained on the screen. Then height of this image is 4 cm . The distance between the object and the screen is 90 cm.