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image
Apparent depth for point object x in all three cases are `H_(1),H_(2) & H_(3)` respectively when seen from above given `H=30 cm, n=1.5 &R=3m, ` then
A. 0.8 lt `H_(2) -H_(1)`lt0.9
B. `H_(2) gt H_(1)`
C. `H_(2) gt H_(3)`
D. `H_(3) gt H_(1)`

1 Answer

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Best answer
Correct Answer - B::C
image
H=30 cm
n=3/2
`H_(1)=H//nimplies (30xx2)/3=20 cm`
Case-II :
image
R=300cm
`(n_(2))/v-(n_(1))/u=(n_(2)-n_(1))/R`
`1/(-H_(2))-3/(-2xx30)=(1-3/2)/(-300)`
`H_(2)=600/29=20.684 cm `
Case -III
image
`(n_(2))/v-(n_(1))/u=(n_(2)-n_(1))/R, " " 1/(-H_(3))-3/(-2xx30)=(1-3/2)/300, H_(3) =600/31 =19.354 cm `

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