Podcast
Questions and Answers
What is the point called where the centre of the reflecting surface of a spherical mirror lies?
What is the point called where the centre of the reflecting surface of a spherical mirror lies?
- Pole (correct)
- Centre of curvature
- Focus
- Radius of curvature
What is the centre of curvature of a concave mirror located?
What is the centre of curvature of a concave mirror located?
- At the edge of the mirror
- Behind the mirror
- In front of the mirror (correct)
- On the surface of the mirror
What is the radius of curvature of a spherical mirror?
What is the radius of curvature of a spherical mirror?
- The distance between the mirror and the centre of curvature
- The distance between the pole and the centre of curvature
- The radius of the sphere of which the mirror is a part (correct)
- The diameter of the mirror
What is the relation between the distance PC and the radius of curvature?
What is the relation between the distance PC and the radius of curvature?
What is the shape of a spoon when it is curved inwards?
What is the shape of a spoon when it is curved inwards?
What is the purpose of recognising the terms concave and convex in the context of spherical mirrors?
What is the purpose of recognising the terms concave and convex in the context of spherical mirrors?
What is the point called where the reflected rays intersect, on the principal axis of a concave mirror?
What is the point called where the reflected rays intersect, on the principal axis of a concave mirror?
What is the relationship between the radius of curvature and the focal length of a spherical mirror?
What is the relationship between the radius of curvature and the focal length of a spherical mirror?
What is the diameter of the reflecting surface of a spherical mirror called?
What is the diameter of the reflecting surface of a spherical mirror called?
Where do the reflected rays appear to come from, when parallel rays are incident on a convex mirror?
Where do the reflected rays appear to come from, when parallel rays are incident on a convex mirror?
What is the condition for the spherical mirrors being considered in this discussion?
What is the condition for the spherical mirrors being considered in this discussion?
What is the symbol used to represent the focal length of a spherical mirror?
What is the symbol used to represent the focal length of a spherical mirror?
What is the path of a ray of light from the object, parallel to the principal axis, after refraction from a convex lens?
What is the path of a ray of light from the object, parallel to the principal axis, after refraction from a convex lens?
A ray of light passes through the principal focus of a convex lens. What is the direction of the emergent ray?
A ray of light passes through the principal focus of a convex lens. What is the direction of the emergent ray?
What is the path of a ray of light passing through the optical centre of a lens?
What is the path of a ray of light passing through the optical centre of a lens?
In a concave lens, where is the principal focus located?
In a concave lens, where is the principal focus located?
What is the direction of a ray of light that appears to meet at the principal focus of a concave lens after refraction?
What is the direction of a ray of light that appears to meet at the principal focus of a concave lens after refraction?
What is the purpose of constructing ray diagrams for lenses?
What is the purpose of constructing ray diagrams for lenses?
What is the primary purpose of placing a burning candle on one side of the lens in the activity?
What is the primary purpose of placing a burning candle on one side of the lens in the activity?
What happens to the size of the image when the candle is placed too far away from the lens?
What happens to the size of the image when the candle is placed too far away from the lens?
What can be represented using ray diagrams?
What can be represented using ray diagrams?
What is the nature of the image formed by a concave lens when the object is placed at infinity?
What is the nature of the image formed by a concave lens when the object is placed at infinity?
What can be concluded from the activity?
What can be concluded from the activity?
What is the position of the image when the object is placed between infinity and the optical centre of the lens?
What is the position of the image when the object is placed between infinity and the optical centre of the lens?
What is the main reason the coin appears to be raised above its actual position in Activity 10.8?
What is the main reason the coin appears to be raised above its actual position in Activity 10.8?
In Activity 10.9, what is the purpose of placing the glass slab at an angle to the line?
In Activity 10.9, what is the purpose of placing the glass slab at an angle to the line?
What is the primary difference between the observations in Activity 10.9 when the glass slab is placed at an angle versus normal to the line?
What is the primary difference between the observations in Activity 10.9 when the glass slab is placed at an angle versus normal to the line?
In Activity 10.10, what is the purpose of fixing the sheet of paper to a drawing board?
In Activity 10.10, what is the purpose of fixing the sheet of paper to a drawing board?
What is the underlying principle behind the observations in Activities 10.8, 10.9, and 10.10?
What is the underlying principle behind the observations in Activities 10.8, 10.9, and 10.10?
What is the common outcome of the three activities (10.8, 10.9, and 10.10)?
What is the common outcome of the three activities (10.8, 10.9, and 10.10)?
