Physics
A ray either incident from the focus (or converging at the focus), after reflection from a spherical mirror :
- becomes perpendicular to the principal axis
- becomes parallel to the principal axis
- becomes normal to the focus
- passes through the centre of curvature
Related Questions
A focal plane passes through the focus and is …………… to the principal axis.
- parallel
- inclined
- normal
- none of the above
For a concave mirror, when the object is at infinity, the nature of the image formed at focus is
- virtual, inverted
- virtual, diminished to a point
- real, enlarged, inverted
- real, inverted, diminished to a point
For an incident ray directed towards center of curvature of a spherical mirror, the reflected ray:
- retraces it's path
- passes through the focus
- passes through the pole
- becomes parallel to the principal axis
For a concave mirror, when the object is at the centre of curvature, the place and nature of the image formed is :
- at focus, real, inverted
- at focus, virtual, inverted
- at centre of curvature, real, inverted, diminished
- at centre of curvature, real, same size as that of the object