Question

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Answer 1

Answer:

9.7cm

Explanation:

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Answer 2

Answer:

play date

Explanation:

Given

Size of the object [o] = +7cm

 F = -18cm

 U= -27cm

V = ?

1/f = 1/v+1/u

1/-18cm = 1/v-1/27

 1/v= -1/54 v = -54cm

Since Vis – ve screen should be placed at 54cm in front of the mirror.

Size of the image : m= I/O= -v/u I/7=-[54/27] I= -14cm

Nature of the image : image is real , inverted and magnified.