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Point A (0, 1 cm) and B (12 cm, 5 cm) ar...

Point A (0, 1 cm) and B (12 cm, 5 cm) are the coordinates of object and image x-axis is the principal axis of the mirror. The, this object image pair is

A

due to the convex mirror of fovcal length`2.5cm`

B

due to a concave mirror having its pole at`(2,0)`.

C

real vertual pair

D

data is insufficient for options(A)and(B)

Text Solution

Verified by Experts

The correct Answer is:
A,B,C
For convex mirror image is always diminish anderect so `B`object and`A`is image

From `DeltaAPA'and BPB'`
`(5)/(x)=(1)/(y) rArr x=5y`
Given that `rArr x+y=12`
`6y=12`
`y=2`and `x=10cm`
`m=(h_(1))/(h_(0))=(f)/(f-u) rArr(1)/(5)=(f)/(f-(-10))`
`5f=f+10`
`f=2.5cm` For comcave mirror each and magnified image is obtained when object is placed between pole and focus of mirror so `A` is object and`B`is image.

From `DeltaAPA'` and `DeltaBPB'`
`(1)/(y)=(5)/(x)`
and `x+y=12`
`6y=12 rArr y=2cm`
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