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प्रश्न
Where should an object be placed in front of a convex lens so as to obtain its virtual, erect and magnified image?
उत्तर
The object should be placed between the optical centre and the focus of a convex lens to obtain a virtual, erect and magnified image.
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संबंधित प्रश्न
When a ray of light enters from one medium to another having different optical densities it bends. Why does this phenomenon occur?
Describe with the help of a ray diagram the nature, size and position of the image formed when an object is placed in front of a convex lens between focus and optical centre. State three characteristics of the image formed.
A convex lens of focal length 8 cm forms a real image of the same size as the object. The distance between object and its image will be:
(a) 8 cm
(b) 16 cm
(c) 24 cm
(d) 32 cm
Describe the nature of image formed when an object is placed at a distance of 30 cm from a convex lens of focal length 15 cm.
An object 2 cm tall is placed on the axis of a convex lens of focal length 5 cm at a distance of 10 m from the optical centre of the lens. Find the nature, position and size of the image formed. Which case of image formation by convex lenses is illustrated by this example?
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is:
Define the term principal axis of a lens.
Draw neat diagram to show the
Convergent action of a convex lens,
Write the name.
The lens used in simple microscope.
