Geometrical OpticsHard
Question
An object 2.4 m in front of a lens forms a sharpimage on a film 12 cm behind the lens. A glassplate 1 cm thick, of refractive index 1.50 isinterposed between lens and film with its planefaces parallel to film. At what distance (fromlens) should object be shifted to be in sharpfocus on film ?
Options
A.5.6 m
B.7.2 m
C.2.4 m
D.3.2 m
Solution
Shift
New image position
Change = 560 - 240 = 320 cm
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
A diverging lens of fiscal length 10 cm is placed 10 cm in front of a plane mirror as shown in the figure. Light from a ...A student wants to set up an experiment with a thin convex lens of focal length f such that a thin real object produces ...Angle of minimum deviation is equal to the half of the angle of prism is an equilateral prism. The refreactive index of ...An object is lying at a distance of 90 cm from a concave mirror of focal length 30 cm. The position and nature of image ...A concave mirror of focal length f1 is placed at a distance of d from a convex lens of focal length f2. Abeam of light c...