Physics
Complete the following diagrams in Fig. 5.42 by drawing the reflected rays for the incident rays 1 and 2 if F is the focus and C is the centre of curvature.
Answer
Ray 1 passing through the focus of a concave mirror gets reflected parallel to the principal axis.
Ray 2 passing through the centre of curvature of a concave mirror is reflected along its own path.
Ray 1 appearing to pass through the focus of a convex mirror gets reflected parallel to the principal axis.
Ray 2 directed in the direction of centre of curvature of a convex mirror is reflected along its own path.
Related Questions
The diagrams (Fig. 5.41) given below show two parallel rays 1 and 2 incident on:
(a) a concave mirror,
(b) a convex mirror.
Draw the reflected rays and mark the focus by the symbol F.
Which are the two convenient rays that are chosen to construct the image formed by a spherical mirror for a given object? Explain with the help of suitable ray diagrams.
Draw a ray diagram to show the formation of the image of an object placed beyond the centre of curvature of a concave mirror. State the position, size and nature of the image.
How is the focal length of a spherical mirror related to its radius of curvature?