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प्रश्न
State the position of object, position of image, nature of image when: Convex lens is used as objective lens of photographic camera.
उत्तर
Object is in between infinity and 2F1. Image is formed between F2 and 2F1. Image is real; inverted and diminished.
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संबंधित प्रश्न
A student wants to project the image of a candle flame on the walls of school laboratory by using a lens:-
(a) Which type of lens should be use and why?
(b) At what distance in terms of focal length 'F' of the lens should be place the candle flame so as to get (i) a magnified, and (ii) a diminished image respectively on the wall?
(c) Draw ray diagram to show the formation of the image in each case?
Fill in the following blank with suitable word:
Parallel rays of light are refracted by a convex lens to a point called the ........
Fill in the following blank with suitable word:
The image in a convex lens depends upon the distance of the ........... from the lens.
List some things that convex lens and concave mirror have in common.
Which type of lenses are:
thicker in the middle than at the edges?
A parallel oblique beam of light falls on a convex lens. Draw a diagram to show the refraction of light through the lens.
State the position of object, position of image, nature of image when: Convex lens is used as in searchlight.
State the nature and position of the object on the principal axis to obtain a real image of the same size
An object is placed in front of a convex lens such that the image formed has the same size as that of the object. Draw a ray diagram to illustrate this.
Differentiate convex lens and concave lens.
