Advertisements
Advertisements
प्रश्न
Which type of lenses are:
thinner in the middle than at the edges?
उत्तर
A concave lens is thinner in the middle than at the edges.
APPEARS IN
संबंधित प्रश्न
Where must the object be placed for the image formed by a converging lens to be:
real, inverted and same size as 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 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.
An object is 2 m from a lens which forms an erect image one-fourth (exactly) the size of the object. Determine the focal length of the lens. What type of lens is this?
The following diagram in given below shows an object OA and its virtual image IB formed by a lens.
A lens forms an upright and diminished image of an object irrespective of its position. What kind of lens is this?
Draw neat diagram to show the
Divergent action of concave lens
Distinguish between concave and convex lens.
Choose the correct alternative and rewrite the following:
Inside water, an air bubble behaves ....................
In figure give below of thin concave lens, F1 and F2 are its foci, complete the path of the given ray of light after it emerges out of the lens.
