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प्रश्न
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उत्तर
(i) When position of object is at infinity, concave mirror forms a point and Real image at Focus point.
(ii) When position of object is beyond C, concave mirror forms a Diminished, Real and inverted image between F and C.
(iii)When position of object is at C, concave mirror forms a Magnified, Real and inverted image at C.
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संबंधित प्रश्न
Write true or false of the following statement.
The image formed by a plane mirror is real
The following diagram shows a point object O placed in front of a plane mirror. Take two rays from the point O and show how the image of O is formed and seen by the eye.
Figure shows an incident ray AO and the normal ON on a plane mirror. The angle which the incident ray AO makes with mirror is 30°. (a) Find the angle of incidence. (b) Draw the reflected ray and then find the angle between the incident and reflected rays.
Define Regular reflection.
Why are infinite images not seen when two plane mirrors are facing each other?
An object 3 cm high produces a real image 4.5 cm high when placed at a distance of 20 cm from a concave mirror. Calculate:
- the position of image
- focal length of the concave mirror.
An object 1.5 cm high when placed in front of a concave. the mirror produces a virtual image 3 cm high. If the object is placed at a distance of 6 cm from the pole of the mirror, calculate:
- the position of the image
- the focal length of the mirror.
Give two uses of convex mirror.
Find the odd one.
glass bottle, exam pad, paper plate, wooden board
