Advertisements
Advertisements
प्रश्न
A point object is placed at O in front of a glass sphere as shown in figure.
Show the formation of the image by the sphere.
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
State power of a lens S.I. unit.
How unit of power related to focal length of a lens?
Which one of the following materials cannot be used to make a lens?
The focal length of a lens is +150 mm. What kind of lens is it and what is its power?
The power of a lens is +2.0D. Its focal length should be :
State the condition for the following a lens has both its focal lengths equal .
How is the power of a lens related to its focal length?
Mohan obtained a sharp inverted image of a distant tree on the screen placed behind the lens. He then moved the screen and tried to look through the lens in the direction of the object. He would see:
(1) a blurred image on the wall of the laboratory.
(2) an erect image of the tree on the lens.
(3) no image as the screen has been removed
(4) an inverted image of the tree at the focus of the lens.
If focal length of a convex lens is 20 cm at what is the power of the lens?
The power of lens depends on the focal length of the lens
