search
arrow-left Previous
Next arrow-right
Q: The focal length of a concave mirror is 24 cm. Following New Cartesian Sign Convention, its centre of curvature is located at :
  • A. –48 cm
  • B. – 24 cm
  • C. 24 cm
  • D. 48 cm
Correct Answer: Option A - Given, According to new Cartesian Sign Convention The focal length of a concave mirror is –24 cm So, R = 2f R = 2 × (–24) = –48 The centered of curvature of a concave mirror lies in front of it.
A. Given, According to new Cartesian Sign Convention The focal length of a concave mirror is –24 cm So, R = 2f R = 2 × (–24) = –48 The centered of curvature of a concave mirror lies in front of it.

Explanations:

Given, According to new Cartesian Sign Convention The focal length of a concave mirror is –24 cm So, R = 2f R = 2 × (–24) = –48 The centered of curvature of a concave mirror lies in front of it.