Reflection of Light

Which of the following is called the centre of curvature?

• The centre of the sphere out of which the spherical mirror was constructed
• The centre of the surface of the mirror
• The point at which reflected rays meet
• None of the above

Which of the following is called the radius of curvature?

• The distance from the centre of curvature to the pole of the mirror
• The distance from the centre of curvature to any point on the surface of the mirror
• Any of the above
• None of the above

Which of the following points must the principal axis pass through?

• Centre of Curvature
• Pole
• Both centre of curvature and pole
• None of the above

What of the following is true about a concave mirror?

• After being reflected, light rays diverge
• After being reflected, light rays converge
• After being reflected, light rays retrace their path
• None of the above

What of the following is true about a convex mirror?

• After being reflected, light rays diverge
• After being reflected, light rays converge
• After being reflected, light rays retrace their path
• None of the above

How many principal focus can a spherical mirror have?

• Zero
• One
• Two
• Infinite

Which of the following is NOT equal to the focal length of a mirror?

• The distance between the principal focus and the pole
• The distance between the centre of curvature and the focus
• Half the radius of curvature
• The distance between the focus and any point on the mirror other than the pole

Which of the following is true about the focus of a concave mirror?

• It is virtual since the reflected rays actually meet
• It is real since the reflected rays actually meet
• It is virtual since the reflected rays appear to meet
• It is real since the reflected rays appear meet to meet

Which of the following is true about the focus of a convex mirror?

• It is virtual since the reflected rays actually meet
• It is real since the reflected rays actually meet
• It is virtual since the reflected rays appear to meet
• It is real since the reflected rays appear to meet

Which of the following is true about a convex mirror?

• Images are always erect
• Images are always diminished
• Both A and B
• None of the above