Question

fill in the blanks
in a convace mirror an incident ray passing through the focus is reflected parallel to the _____​

Answer 1

Answer:

in a convace mirror an incident ray passing through the focus is reflected parallel to the principal axis.

Explanation:

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Answer 2

Required Answer

1. Fill in the blanks -

• In a convace mirror an incident ray passing through the focus is reflected parallel to the principal axis.

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Extra Information :

• When a ray of light travells parallel to the principal axis of a concave mirror, after reflection it passes through the principal focus.

• When a ray of light which first passes through the principal focus, after reflection travels parallel to the principal focus.

• A ray of light which passes through the centre of curvature, after reflection will retraces its path.

• Principal axis : It is an imaginary line which passes through the pole and centre of curvature of a spherical mirror.

• Principal focus : It is a point lying on the principal axis, where a beam of light passes parallel to the principal axis which after refraction or reflection appears to meet or actually meets.

Characteristics of image formed in plane mirror -

• Image formed in a plane mirror is always virtual, erect, laterally inverted.
• It is formed as far behind the mirror as the object is in front of it.
• It is of the same size as the object.

Characteristics of image formed in Concave mirror -

• The image formed by a concave mirror can be real or virtual.
• The image formed can be diminished, of the same size or magnified.

Characteristics of image formed in Convex mirror -

• The image formed by a convex mirror is always virtual and diminished.