Advertisements
Advertisements
Question
What is the difference between a double convex and a bi-convex lens?
Solution
In both cases, the two surfaces are convex towards the air. In the case of a double convex lens, the two surfaces may have any values for the two radii of curvature of the two surfaces while in the bi-convex lens the radii of curvature of the two surfaces, has the same value. Thus, every bi-convex lens is a double convex lens about every double convex may not be bi-convex.
APPEARS IN
RELATED QUESTIONS
An object 5 cm is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position, nature and size of the image.
Where should an object be placed so that a real and inverted image of the same size as the object is obtained using a convex lens?
Define principal axis, principal focus and focal length of a convex lens.
What kind of lens can form:
am erect diminished image?
What would be the diameter of the image of the flower on the film?
Which causes more bending (or more refraction) of light rays passing through it : a convex lens of long focal length or a convex lens of short focal length?
What kind of lens is used to correct
long-sightedness?
The given below figure shows an object OA and its image IB formed by a lens. State three characteristics of the image.
Distinguish between Concave lens and Convex Lens.
Distinguish between:
Concave lens and Convex lens
