Advertisements
Advertisements
प्रश्न
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
Advertisements
उत्तर
Focus of a convex mirror: The focus of a convex mirror is a point on the principal axis from which, the light rays incident parallel to principal axis, appear to come, after reflection from the mirror.
Focal length of a convex mirror: The distance of the focus from the pole of the convex mirror is called its focal length.
APPEARS IN
संबंधित प्रश्न
Name the spherical mirror which can produce a real and diminished image of an object.
Draw a ray diagram to show the formation of image by a concave mirror for an object placed between its pole and focus. State three characteristics of the image.
What type of mirror can be used to obtain a real image of an object?
Name the kind of mirror used to obtain:
A virtual and enlarged image
Which mirror will you prefer to use as a rear view mirror in a car : plane mirror or convex mirror? Give one reason.
Define the following term in relation to concave mirror.
Principal focus
Define the term Normal.
The diagram below shows the parallel rays incident on a convex mirror. C is the centre of the curvature of the mirror. By drawing the paths of the reflected rays, label the focus F and hence find the focal length of the mirror.
The distance from the center of curvature of the mirror to the pole is called the focal length of the mirror.
