Advertisements
Advertisements
प्रश्न
What do you understand by the focus and focal length of a spherical mirror? Show them on the separate diagrams for each of a concave mirror and a convex mirror.
Advertisements
उत्तर
FOCUS: For concave mirror
“A point on the principal axis at which the light rays incident parallel to the principal axis meet after reflection from the mirror.
FOCAL LENGTH: “The distance between focus and pole”. FP is focal length for a concave mirror.
FOCUS: For Convex mirror
“A point on its principal axis at which the light rays incident parallel to the principal axis appear to meet after reflection from the mirror”.
FOCAL LENGTH: “The distance between P and F is F.L.”
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal focus
What is the name of the phenomenon in which the right side of an object appears to be the left side of the image in a plane mirror?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What name is given to the distance between spherical mirror and carbon paper?
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.
The distance from the pole to the focus is called ______.
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
