a. An object is kept at a distance of 18 cm, 20 cm, 22 cm and 30cm, from a lens of power + 5D. (i) In which case or cases would you get a magnified image? (ii) Which of the magnified image can we get on a screen? ( b) List two widely used applications of a convex lens.

a. An object is kept at a distance of 18 cm, 20 cm, 22 cm and 30cm, fr

1.	a. An object is kept at a distance of 18 cm, 20 cm, 22 cm and 30cm, from a lens of power + 5D. (i) In which case or cases would you get a magnified image? (ii) Which of the magnified image can we get on a screen? ( b) List two widely used applications of a convex lens.
Answer» SOLUTION :a (i) `P=1/f,f=100/5=20cm` Object at 18 cm, 22 cm and 30 cm, IMAGE can be magnified. (II) At 22 cm and 30 cm, image canbe obtained on a screen. b. Film projectors and TELESCOPES.