Q. 104.4( 70 Votes )
Which type of lens forms always a virtual image?
A virtual image is formed by a concave lens. A concave lens forms a virtual, erect and diminished image i.e. smaller in size as that of object.
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A virtual image larger than the object can be produced by a
i. concave lens ii. concave mirror
iii. convex mirror iv. Plane mirror.NCERT Science
Which type of lens forms always a virtual image?NCERT Science
An image formed by a lens is erect. Such an image could be formed by aNCERT - Exemplar Science
Two different type of lenses are placed on a sheet of newspaper. How will you identify them without touching?NCERT - Exemplar Science
An erect and enlarged image of an object is formed on a screen. Explain how this could be possible.NCERT - Exemplar Science
The image formed by a lens is always virtual, erect and smaller in size for an object kept at different positions in front of it. Identify the nature of the lens.NCERT - Exemplar Science
It was observed that when the distance between an object and a lens decreases, the size of the image increases. What is the nature of this lens? If you keep on decreasing the distance between the object and the lens, will you still able to obtain the image on the screen? Explain.NCERT - Exemplar Science
Observe the figures given as Figure 15.1 carefully. Fig 15.1
The given figures show the path of light through lenses of two different types, represented by rectangular boxes A and B. What is the nature of lenses A and B?NCERT - Exemplar Science