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प्रश्न
A ray of light is going towards the focus of a concave lens. draw a ray diagram to show the path of this ray of light after refraction through the lens.
उत्तर
A ray of light passing through the focus of a concave lens will become parallel to the principal axis after refraction.
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संबंधित प्रश्न
Where must the object be placed for the image formed by a converging lens to be:
virtual, upright and larger than the object?
If an object is placed 21 cm from a converging lens, the image formed is slightly smaller than the object. If the object is placed 19 cm from the lens, the image formed is slightly larger than object. The approximate focal length of the lens is ______.
A concave lens of focal length 15 cm forms an image 10 cm from the lens. How far is the object placed from the lens? Draw the ray diagram.
A concave lens of 20 cm focal length forms an image 15 cm from the lens. Compute the object distance.
A concave lens forms the image of an object which is ______.
An object of height 4 cm is kept at a distance of 30 cm from a concave lens. Use lens formula to determine the image distance, nature and size of the image formed if focal length of the lens is 15 cm.
A lens forms an image between the object and the lens. Name the lens.
A concave lens has a focal length 30 cm. Find the position and magnification (m) of the image for an object placed in front of it at distance 30 cm. State whether the image is real or virtual?
The focal length of a lens is negative. In this case, state the kind of lens.
A parallel, oblique beam of light falls on a concave lens. Draw a diagram to show refraction of light through the lens.
