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QJEEM21Pheb52: JEE Main 2021 Physics - Class 12 JEEM21Pheb52 Solution: Find the distance of the image from object O, formed by the…

Find the distance of the image from object O, formed by the combination of lenses in the figure :

JEE Main 2021 (Online) 27th August Morning Shift Physics - Geometrical Optics Question 111 English

Multiple Choice Options

  • A 75 cm
  • B 10 cm
  • C 20 cm
  • D infinity

Step-by-Step Verified Solution

1V1+130=110{1 \over {{V_1}}} + {1 \over {30}} = {1 \over {10}}

1V1=230⇒V1=15{1 \over {{V_1}}} = {2 \over {30}} \Rightarrow {V_1} = 15 cm

1V2−110=−110{1 \over {{V_2}}} - {1 \over {10}} = - {1 \over {10}}

1V2=0{1 \over {{V_2}}} = 0

V2 = ∞\infty

V3 = 30 cm

OV3 = 75 cm

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