Advertisements
Advertisements
प्रश्न
State whether the image in part (a) is real or virtual?
Advertisements
उत्तर
The image is virtual.
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses: focal length
A concave mirror always forms a real image.
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.
At which point of the spherical mirror the carbon paper is placed?
Name the kind of mirror used to obtain
(a) a real and enlarged image
(b) a virtual and enlarged image
(c) a real and diminished image, and
(d) a virtual and diminished image.
Complete the following diagrams shown in Fig. by drawing the reflected ray for each of the incident ray A and B.
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray:
Define the term Centre of curvature.
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
Define the following terms in the context of a diverging mirror:
- Principal focus
- Focal length
Draw a labelled ray diagram to illustrate your answer.
