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प्रश्न
A lens forms an image between the object and the lens. Name the lens.
उत्तर
The lens that forms the image between the object and itself is a concave lens.
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संबंधित प्रश्न
Explain with the help of a diagram, why the concave lens is also called a diverging lens.
State whether concave lens has a real focus or a virtual focus.
A converging lens of focal length 5 cm is placed at a distance of 20 cm from a screen. How far from the lens should an object be placed so as to form its real image on the screen?
Which of the following can form a virtual image which is always smaller than the object?
(a) a plane mirror
(b) a convex lens
(c) a concave lens
(d) a concave mirror
Name one of the common defects of vision and the type of lens used to remove it.
A lens forms an upright and diminished image of an object irrespective of its position. What kind of lens is this?
At what distance from a concave lens of focal length 20 cm a 6 cm tall object be placed so as to obtain its image at 15 cm from the lens? Also calculate the size of the image formed.
Draw a ray diagram to justify your answer for the above situation and label it.
State three characteristics of the image of an extended source, formed by a concave lens.
An object is placed in front of a lens between its optical centre and focus. The formed image is virtual, erect, and diminished. Name the lens used.
Distinguish between:
Concave Lens and Convex Lens
