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Questions and Answers
What is the law of reflection?
What is the law of reflection?
- The angle of incidence is greater than the angle of reflection
- The angle of reflection is perpendicular to the angle of incidence
- The angle of incidence equals the angle of reflection (correct)
- The angle of incidence is less than the angle of reflection
Which type of reflection is mirror-like?
Which type of reflection is mirror-like?
- Diffuse reflection
- Refractive reflection
- Regular reflection
- Specular reflection (correct)
In which field is reflection used to study seismic waves?
In which field is reflection used to study seismic waves?
- Meteorology
- Botany
- Geology (correct)
- Astronomy
Which electromagnetic waves can be reflected at shallow angles with special 'grazing' mirrors?
Which electromagnetic waves can be reflected at shallow angles with special 'grazing' mirrors?
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In acoustics, what does reflection cause?
In acoustics, what does reflection cause?
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Study Notes
Law of Reflection
- States that the angle of incidence is equal to the angle of reflection.
- Both angles are measured from the normal, an imaginary line perpendicular to the surface.
Types of Reflection
- Specular reflection refers to mirror-like reflection, where light reflects at a definite angle, creating a clear image.
Reflection in Geophysics
- In geophysics, reflection is utilized to study seismic waves, helping to analyze the Earth's subsurface structure.
Grazing Incidence Reflection
- Electromagnetic waves, particularly X-rays, can be reflected at shallow angles using special mirrors known as grazing mirrors.
Effects of Reflection in Acoustics
- In acoustics, reflection causes echoes, where sound waves bounce off surfaces and return to the listener, affecting sound clarity and volume.
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