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

1.	An object is kept at a distance of 18 cm, 20 cm,22 cm and,30 cm, from a lens of power +5 D.(i) In which case or cases would you get a magnified image ?(ii) Which of the magnified image can we get on a screen ?
Answer» (i) P=1/f, f=100/5=20 cm An object at 18 cm, 22 cm, and 30 cm, the image can be magnified. (ii) At 22 cm and 30 cm, the image can be obtained on a screen.

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

Answer»

(i) P=1/f, f=100/5=20 cm

An object at 18 cm, 22 cm, and 30 cm, the image can be magnified.

(ii) At 22 cm and 30 cm, the image can be obtained on a screen.