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Geometrical Optics question

2012 · Shift 0 · Q49

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JEE Main
Physics
Geometrical Optics
2012 · Shift 0 · Q49

Geometrical Optics question

2012 · Shift 0 · Q49

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1

An object

2.4m

in front of a lens forms a sharp image on a film

12cm

behind the lens. A glass plate

1cm

thick, of refractive index

1.50

is interposed between lens and film with its plane faces parallel to film. At what distance (from lens) should object shifted to be in sharp focus of film?

A
$7.2m$
B
$24m$
C
$3.2m$
D
$5.6m$

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