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Questions and Answers
What is the primary function of the cladding in an optical fiber?
What is the primary function of the cladding in an optical fiber?
- To absorb excess light energy
- To reduce the refractive index difference between the core and the surrounding environment (correct)
- To focus light onto the core
- To provide mechanical strength to the fiber
What is the name of the phenomenon that occurs when waves encounter obstacles or pass through small openings, causing them to spread out?
What is the name of the phenomenon that occurs when waves encounter obstacles or pass through small openings, causing them to spread out?
- Diffraction (correct)
- Dispersion
- Interference
- Refraction
What is the term for the dependence of light's speed on its wavelength in a medium?
What is the term for the dependence of light's speed on its wavelength in a medium?
- Dispersion (correct)
- Total Internal Reflection
- Refraction
- Diffraction
What is the condition required for observable interference patterns to occur?
What is the condition required for observable interference patterns to occur?
What is the term for the bending of light as it passes from one medium to another?
What is the term for the bending of light as it passes from one medium to another?
What type of interference occurs when two waves are completely out of phase (by λ/2 or λ/2)?
What type of interference occurs when two waves are completely out of phase (by λ/2 or λ/2)?
What is a characteristic of a wave that distinguishes it from the transportation of matter?
What is a characteristic of a wave that distinguishes it from the transportation of matter?
What is the primary characteristic of electromagnetic radiation?
What is the primary characteristic of electromagnetic radiation?
What determines the speed of a wave in a given medium?
What determines the speed of a wave in a given medium?
What is the concept behind the construction of a new wave front based on the previous wave front’s knowledge?
What is the concept behind the construction of a new wave front based on the previous wave front’s knowledge?
What occurs when light travels from one medium to another and changes direction due to a change in speed?
What occurs when light travels from one medium to another and changes direction due to a change in speed?
What is the relationship between electric and magnetic fields in electromagnetic waves?
What is the relationship between electric and magnetic fields in electromagnetic waves?
What is the critical angle in total internal reflection?
What is the critical angle in total internal reflection?
What is the direction of wave propagation in electromagnetic waves?
What is the direction of wave propagation in electromagnetic waves?
What determines the optical density of a medium?
What determines the optical density of a medium?
What is the condition for generating electromagnetic waves?
What is the condition for generating electromagnetic waves?
What type of reflection occurs when light reflects off a rough surface and scatters in various directions?
What type of reflection occurs when light reflects off a rough surface and scatters in various directions?
What is the summary of Maxwell's work on electromagnetic radiation?
What is the summary of Maxwell's work on electromagnetic radiation?
What is the primary reason why the number of nodal lines increases as the frequency of the sources increases?
What is the primary reason why the number of nodal lines increases as the frequency of the sources increases?
What is the concept that explains why we can hear sounds even when the source is not directly visible?
What is the concept that explains why we can hear sounds even when the source is not directly visible?
According to Newton's particle theory of light, what is the primary characteristic of light particles?
According to Newton's particle theory of light, what is the primary characteristic of light particles?
What is the principle that supports the wave theory of light?
What is the principle that supports the wave theory of light?
What is the result of changing the relative phase of the sources in a two-source interference pattern?
What is the result of changing the relative phase of the sources in a two-source interference pattern?
What is the principle used to determine the wavelength and other properties of waves from measurements of angles and distances in interference patterns?
What is the principle used to determine the wavelength and other properties of waves from measurements of angles and distances in interference patterns?
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