Question

m. A concave mirror forms the image at a distance
of 30cm for an abject place at a distance of 30cm.
Its linear magnification is given by
1
O(A)
11
(B)
(C)
1
(D) -1​

Answer 1

Answer:

option (d) is correct

-1

Answer 2

Answer:

Explanation:

Given :

• Image distance (v) = -30 cm
• Object distance (u) = -30 cm

To Find :

• It's linear magnification, M

Formula to be used :

• M = v/u

Solution :

Magnification,

M = v/u

⇒ M = -30/-30

⇒ M = 30/30

⇒ M = 3/3

⇒ M = 1 (Option. A)

Hence, it's linear magnification is 1.