Question

which of the following is correct
A.All distance should be measured from pole
B. Distances measured in the direction of incident light are positive
C. Distances measured opposite to the direction of incident light are negativ
D. All the above​

Answer 1

Answer:

All distance should be measured from pole

Answer 2

➢ Solution :-

☞ All the distances are always measured from the pole of the mirror

☞ Distances measured in the direction of incident light are positive

☞ Distances measured opposite to the direction of incident light are negative

All the above statements are true

Hence , the answer is D

➢ Extra Information :-

• The focal length of a concave mirror is negative
• The focal length of a convex mirror is positive

◈Mirror formula

• 1 / f = 1 / v + 1 / u

◈ Magnification

• m = - v / u = hi / ho