Question 5 of 25 Which of the following means that a mirror is convex?
A. +d;
B. -d;
O C. +f
O D. -f

Option (c) : +f

Explanation:

Sign convention is based on cartesian system with Optical Centre as vertex, therefore, focal length of a convex mirror is +ive.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

your answer is c! hope this : )