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Questions and Answers
What is the law of reflection?
What is the law of reflection?
- The angle of reflection is always 90 degrees
- The angle of reflection is greater than the angle of incidence
- The angle of incidence equals the angle of reflection (correct)
- The angle of reflection is unrelated to the angle of incidence
In which field is reflection important for the study of seismic waves?
In which field is reflection important for the study of seismic waves?
- Botany
- Astronomy
- Geology (correct)
- Meteorology
What type of reflection causes echoes in acoustics?
What type of reflection causes echoes in acoustics?
- Diffuse reflection
- Refraction
- Absorption
- Specular reflection (correct)
Where is reflection observed with surface waves?
Where is reflection observed with surface waves?
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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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XMM-Newton is an X-ray space observatory launched by NASA in December 1999
XMM-Newton is an X-ray space observatory launched by NASA in December 1999
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XMM-Newton is the second cornerstone mission of ESA's Horizon 2000 programme
XMM-Newton is the second cornerstone mission of ESA's Horizon 2000 programme
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The spacecraft is named after physicist and astronomer Sir Isaac Newton
The spacecraft is named after physicist and astronomer Sir Isaac Newton
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XMM-Newton was initially funded for five years
XMM-Newton was initially funded for five years
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ESA plans to succeed XMM-Newton with the Advanced Telescope for High Energy Astrophysics (ATHENA) in 2035
ESA plans to succeed XMM-Newton with the Advanced Telescope for High Energy Astrophysics (ATHENA) in 2035
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