A lens has a power of +3 diopters in air. What will be the power of th – McqOptions

MCQOPTIONS

1.	A lens has a power of +3 diopters in air. What will be the power of the lens if it is completely immersed in water? Given, _g = ( frac {3}{2} ) and _w = ( frac {4}{3} ).
A.	5 D
B.	3 D
C.	1 D
D.	( frac {3}{4} ) D
Answer» D. ( frac {3}{4} ) D

Discussion

No Comment Found

Related MCQs

A lens has a power of +3 diopters in air. What will be the power of the lens if it is completely immersed in water? Given, <sub>g</sub> = ( frac {3}{2} ) and <sub>w</sub> = ( frac {4}{3} ).
Find the magnification of the lens if the focal length of the lens is 10 cm and the size of the image is -30 cm.
A lens has a focal length of 10 cm. Where the object should be placed if the image is to be 40 cm in the positive direction from the lens?
Calculate the focal length of a biconvex lens if the radii of its surfaces are 50 cm and 20 cm, and index of refraction of the lens glass = 1.2.
The power of a convex lens is negative.
What is the SI unit of power of a lens?
According to the thin lens formula, which one of the following is true regarding the focal length of the lens?
Identify the Lens Maker s Formula.
Sign conventions for spherical refracting surface are the same as those for spherical mirrors.
X is thicker in the middle than at the edges, whereas, Y is thicker at the edges than in the middle. Identify X and Y .