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Questions and Answers
What is the speed at which light travels away from its source?
What is the speed at which light travels away from its source?
- 2 x 10^8 ms^-1
- 3 x 10^8 ms^-1 (correct)
- 5 x 10^8 ms^-1
- 4 x 10^8 ms^-1
What does the Refractive Index of a Medium measure?
What does the Refractive Index of a Medium measure?
- The bending of light in the medium
- The rate of reflection in the medium
- The speed of light in the medium
- The ratio of angles of incidence and refraction in the medium (correct)
What type of reflection occurs when light scatters off a rough surface in all directions?
What type of reflection occurs when light scatters off a rough surface in all directions?
- Diffuse Reflection (correct)
- Regular Reflection
- Specular Reflection
- Regular Refraction
What type of image is formed by the apparent intersection of light rays?
What type of image is formed by the apparent intersection of light rays?
Which law states that the incident ray, the normal at the point of incidence, and the reflected ray all lie in the same plane?
Which law states that the incident ray, the normal at the point of incidence, and the reflected ray all lie in the same plane?
What type of images do convex mirrors produce?
What type of images do convex mirrors produce?
What happens to the image size as an object moves closer to a convex mirror?
What happens to the image size as an object moves closer to a convex mirror?
What is the difference between the images produced by a concave mirror when the object is outside the focus and when it is inside or at the focus?
What is the difference between the images produced by a concave mirror when the object is outside the focus and when it is inside or at the focus?
What formula can be used to calculate focal length (f), object distance (u), and image distance (v) for a concave mirror?
What formula can be used to calculate focal length (f), object distance (u), and image distance (v) for a concave mirror?
Which type of mirror is commonly used by dentists and in floodlights?
Which type of mirror is commonly used by dentists and in floodlights?
What type of mirrors are typically used in supermarkets and cars to provide a wide field of view?
What type of mirrors are typically used in supermarkets and cars to provide a wide field of view?
What happens to the direction of light when it goes from a denser medium to a rarer medium?
What happens to the direction of light when it goes from a denser medium to a rarer medium?
What property makes an optical fibre capable of transmitting light?
What property makes an optical fibre capable of transmitting light?
What does Snell's Law define in the context of refraction?
What does Snell's Law define in the context of refraction?
What is the critical angle in optics?
What is the critical angle in optics?
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