In a concave mirror, the object is at infinity then the image formed is
Infinity
At the focus
At the centre of curvature
Behind the mirror
A centre of a spherical mirror is called the
Centre of curvature
Pole of the mirror
Axis of the mirror
None of these
Concave mirror is used in
Solar devices
Car headlights
Dentist's mirror
All of these
Army personnel and scouts use _____ for signalling
Concave
Convex
Plane
__________ is used as shaving mirrors.
Convex mirror
Plane mirror
Concave mirror
In a concave mirror the object is at the focus, the image is at
at infinity
The focus
An image formed by a plane mirror is a/an
Virtual image
real image
Inverted image
An imaginary line drawn perpendicular to the mirror at the point of incidence is called
Incident ray
Reflected ray
Normal
Radius of curvature, r =
f/2
2f
2/3 f
f
_________ is denoted by P.
Principle focus
Pole
Principal axis
