Advertisements
Advertisements
Question
In each case (a) and (b), draw reflected rays for the given incident rays and mark focus by the symbol F.

Advertisements
Solution
(a)

(b)

APPEARS IN
RELATED QUESTIONS
Explain the following term related to spherical lenses:- centres of curvature
The diverging lens in part (a) is replaced by a converging lens also of focal length 100 mm. The object remains in the same position and an image is formed by the converging lens. Compare two properties of this image with those of the image formed by the diverging lens in part (a).
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
What type of mirror can be used to obtain a real image of an object?
What is meant by magnification? Write its expression. What is its sign for the (a) real (b) virtual, image?
Answer the following question.
Write the modification in the curvature of the eye lens which enables us to see the nearby objects clearly?
Define the term Centre of curvature.
A student traces the path of a ray of light passing through a rectangular slab.
![]() |
![]() |
![]() |
![]() |
For measuring the angle of incidence, he must position the protractor in the manner shown in the figure:
If the real image of a candle flame formed by a lens is three times the size of the flame and the distance between lens and image is 80 cm, at what distance should the candle be placed from the lens?
Define the following terms in the context of a diverging mirror:
- Principal focus
- Focal length
Draw a labelled ray diagram to illustrate your answer.




