Advertisements
Advertisements
Question
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
Solution
APPEARS IN
RELATED QUESTIONS
Calculate the focal length of a corrective lens having power +2.5 D.
State power of a lens S.I. unit.
Find the power of a concave lens of focal length 2m.
A student uses a lens of focal length 40 cm and another of –20 cm. Write the nature and power of each lens
Name the physical quantity whose unit is dioptre.
What is the power of a convex lens of focal length 0.5 m?
The power of a combination of two lenses X and Y is 5 D. If the focal length of lens X be 15 cm :
(a) calculate the focal length of lens Y.
(b) state the nature of lens Y.
Find the radius of curvature of the convex surface of a plano-convex lens, whose focal length is 0.3 m and the refractive index of the material of the lens is 1.5.
A 5.0 diopter lens forms a virtual image which is 4 times the object placed perpendicularly on the principal axis of the lens. Find the distance of the object from the lens.
Find the power of a convex lens of focal length of + 25 cm.
