Q21 of 27 Page 132

Draw a ray diagram for the following positions and explain the nature and position image.

Object is placed at C2


When the object is placed at C2 (2F) , then the rays coming from the object parallel to the principal axis after refraction will pass through focus. The ray passing through optic centre O will pass without deviation. The point where two rays meet will give the point of image formation. The image formed will be real, inverted & of the same size of as that of the object.


More from this chapter

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19

Find the focus by drawing a ray diagram using the position of source S and the image S’ given in the figure Q-I9. (AS5)

 20

A parallel beam of rays is incident on a convergent lens with a local length of 40cm. Where should a divergent lens with a focal length of 15 cm be placed for the beam of rays to remain parallel after passing through the two lenses? Draw a ray diagram. (AS5)

 21

Draw a ray diagram for the following positions and explain the nature and position image.

Object is placed between F2 and optic centre P. (AS5)

 22

How do you appreciate the coincidence of experimental facts with the results obtained by a ray diagram in terms of the behavior of images formed by lenses? (AS6)