Podcast
Questions and Answers
What is the speed of light?
What is the speed of light?
- 4 x 10^8 ms^-1
- 3 x 10^8 ms^-1 (correct)
- 5 x 10^8 ms^-1
- 2 x 10^8 ms^-1
Which type of reflection occurs off a rough surface?
Which type of reflection occurs off a rough surface?
- Diffuse Reflection (correct)
- Refractive Reflection
- Regular Reflection
- Virtual Reflection
What is the definition of Refractive Index?
What is the definition of Refractive Index?
- Ratio of wavelength to amplitude of light
- Ratio of intensity to frequency of light
- Ratio of speed of light in vacuum to another medium (correct)
- Ratio of incident light to reflected light
Which mirrors produce only virtual images?
Which mirrors produce only virtual images?
When does a real image form?
When does a real image form?
According to the Laws of Reflection, what do the reflected ray, incident ray, and normal at the point of incidence have in common?
According to the Laws of Reflection, what do the reflected ray, incident ray, and normal at the point of incidence have in common?
Which mirror is commonly used in supermarkets and cars to provide a wide field of view?
Which mirror is commonly used in supermarkets and cars to provide a wide field of view?
What happens to light when it goes from a denser to a rarer medium?
What happens to light when it goes from a denser to a rarer medium?
What formula is used to calculate the focal length, object distance, and image distance of lenses?
What formula is used to calculate the focal length, object distance, and image distance of lenses?
What type of system is produced by the human eye with its lens and cornea?
What type of system is produced by the human eye with its lens and cornea?
What can light travel through by total internal reflection, providing a communication pathway?
What can light travel through by total internal reflection, providing a communication pathway?
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