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Q: Which of the following statements with regard to the principal axis of a spherical mirror is/are correct? (A) The pole on the principal axis is similar to the origin of a Cartesian coordinate axes plane. (B) Distances measured from the pole, along the principal axis opposite to the direction of incident light are negative. (C) Heights of objects or images above the principal axis and perpendicular to it are considered negative.
  • A. Only (A) and (B)
  • B. Only (B) and (C)
  • C. (A), (B) and (C)
  • D. Only (A) and (C)
Correct Answer: Option A - A spherical mirror is a mirror that has the shape of a piece cut out of a hollow spherical surface. With regard to the principal axis of a spherical mirror. The pole on the principal axis is similar to the origin of a Cartesian coordinate axes plane. Distances measured from the pole, a long the principal axis opposite to the direction of incident light are negative. Height of objects or images above the principal axis perpendicular to it are considered positive.
A. A spherical mirror is a mirror that has the shape of a piece cut out of a hollow spherical surface. With regard to the principal axis of a spherical mirror. The pole on the principal axis is similar to the origin of a Cartesian coordinate axes plane. Distances measured from the pole, a long the principal axis opposite to the direction of incident light are negative. Height of objects or images above the principal axis perpendicular to it are considered positive.

Explanations:

A spherical mirror is a mirror that has the shape of a piece cut out of a hollow spherical surface. With regard to the principal axis of a spherical mirror. The pole on the principal axis is similar to the origin of a Cartesian coordinate axes plane. Distances measured from the pole, a long the principal axis opposite to the direction of incident light are negative. Height of objects or images above the principal axis perpendicular to it are considered positive.