Question

20.
10 Lught is formed 12 cm from a lens, the object being 0.5 cm high. Find the focal length
of the lens.
21. A convex lens of focal length 0.10 m is used to form a magnified image of an object of height 5 mm placed
at a distance of 0.08 m from the lens. Calculate the position, nature and size of the image.
22. A convex lens of focal length 6 cm is held 4 cm from a newspaper which has print 0,5 cm high. By calculation​

Answer 1

Answer:

Showing results for 20. 10 Light is formed 12 cm from a lens, the object being 0.5 cm high. Find the focal length of the lens. 21. A convex lens of focal length 0.10 m is used to form a magnified image of an object of height 5 mm placed at a distance of 0.08 m from the lens. Calculate the position, nature and size of the image. 22. A convex lens of focal length 6 cm is held 4 cm from a newspaper which has print 0,5 cm high. By calculation

Search instead for 20. 10 Lught is formed 12 cm from a lens, the object being 0.5 cm high. Find the focal length of the lens. 21. A convex lens of focal length 0.10 m is used to form a magnified image of an object of height 5 mm placed at a distance of 0.08 m from the lens. Calculate the position, nature and size of the image. 22. A convex lens of focal length 6 cm is held 4 cm from a newspaper which has print 0,5 cm high. By calculation