Q1.What is the term for the distance between the pole and the principal focus of a spherical mirror?

Q2.What is the diameter of the reflecting surface of a spherical mirror called?

Q3.For the spherical mirrors discussed in the text, what is the relationship between their aperture and radius of curvature?

Q4.For spherical mirrors of small apertures, what is the relationship between the radius of curvature (R) and focal length (f)?

Q5.What does the relationship R = 2f imply about the principal focus of a spherical mirror?

Q6.According to Activity 9.2, what was the nature of the image of the Sun formed by a concave mirror on paper?

Q7.How can the approximate focal length of a concave mirror be determined using the image of the Sun or a distant object?

Q8.For a spherical mirror of small aperture, where does the principal focus (F) lie relative to the pole (P) and the centre of curvature (C)?

Q9.When a bright object is placed far beyond the centre of curvature (C) of a concave mirror, what kind of image is expected to be formed on a paper screen, based on the example of the Sun's image?

Q10.In Activity 9.3, which of the following object positions is NOT mentioned for studying image formation by a concave mirror?