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Explain the following term related to spherical lenses:- aperture
What happens when a ray of light falls normally (or perpendiculary) on the surface of a plane mirror?
A student obtained on a screen the sharp image of a candle flame placed at the farther end of laboratory table using a concave mirror. For getting better value of focal length of the mirror, the teacher suggested to him to focus the sun. What should the student do?
(A) Should move the mirror away from the screen.
(B) Should move the mirror towards the screen.
(C) Should move the mirror and screen both towards the sun.
(D) Should move only the screen towards the sun.
State the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain your answer with the help of suitable ray diagrams.
The diagram below in Figure, shows a convex mirror. C is its centre of curvature and F is its focus. (i) Draw two rays from A and hence locate the position of image of object OA. Label the image IB. (ii) State three characteristics of the image.
For what position of object, the image formed by a concave mirror is magnified and erect?
State the position of object for which the image formed by a concave mirror is of same size.
Define the following term in relation to concave mirror.
Pole
Which of the following has curved reflecting surface?
