Advertisements
Advertisements
Question
Solution
APPEARS IN
RELATED QUESTIONS
We can obtain a real, enlarged and inverted image by a concave mirror.
Give one use each of a concave and a convex mirror.
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the position and size of the image.
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
Define the following term:
concave mirror
Define the following term in relation to concave mirror.
Radius of curvature
The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?
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?
What is the focal length (f) of a mirror?
