Advertisements
Advertisements
प्रश्न
Does the mirror mentioned in part (b) form real image for all locations of the object?
Advertisements
उत्तर
No, it does not form real image for all locations of the object.
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses:- optical centre
What type of image is formed:
on a cinema screen?
A 50 cm tall object is at a very large distance from a diverging lens. A virtual, erect and diminished image of the object is formed at a distance of 20 cm in front of the lens. How much is the focal length of the lens?
Mention the types of mirrors used as (i) rear view mirrors, (ii) shaving mirrors. List two reasons to justify your answers in each case.
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.

Draw a ray diagram to show the formation of image by a concave mirror for the object beyond its centre of curvature. State three characteristics of the image.
Define linear magnification produced by a mirror?
The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?
How tall does a mirror have to be to fit an entire person’s body?
What is “aperture”?
