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Questions and Answers
What is the definition of a wave front?
What is the definition of a wave front?
- The locus of all particles in the same state of vibration (correct)
- The locus of all particles in different states of vibration
- The locus of particles at rest
- The locus of all particles in the medium
What type of wave front does a point source of light at an infinite distance in an isotropic medium create?
What type of wave front does a point source of light at an infinite distance in an isotropic medium create?
- Elliptical wavefront
- Cylindrical wavefront
- Spherical wavefront
- Plane wavefront (correct)
According to Huygen’s principle, what may every point on a given wave front be considered as?
According to Huygen’s principle, what may every point on a given wave front be considered as?
- A source of primary wavelets
- A source of sound waves
- A source of light rays
- A source of secondary wavelets (correct)
What is the speed of propagation of the secondary wavelets according to Huygen’s principle?
What is the speed of propagation of the secondary wavelets according to Huygen’s principle?
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What type of wave front does a linear source of light, such as a slit illuminated by a lamp, give rise to?
What type of wave front does a linear source of light, such as a slit illuminated by a lamp, give rise to?
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