The atmosphere absorbs some light before it can reach a telescope’s detector, ma

Question

The atmosphere absorbs some light before it can reach a telescope’s detector, making objects appear fainter. The exact amount of absorption depends on the wavelength of light being observed, as shown in this graph of the percentage of light that can make it through the atmosphere to the ground. 0% transparency (atmosphere is opaque) means no light gets through, and 100% transparency means all the light gets through. The type of light per wavelength is labeled at the bottom of the figure. Visible light is marked by the rainbow.

100 Radio window Atmosphere is opaque Atmosphere is opaque 50 Atmosphere is opaque 10-12 10-11 10-10 10-9 108 0 104 103 104 103 102 10-1 101 1 102 103 0.001 nm 0.01 nm 0.1 nm 1nm 10 nm 100 nm 1mm 10mm 100mm 1 mm 1cm 10 cm 1m 10m100 m1 km Wavelength

Explanation / Answer

Based on the above graph the types of light from astronomical sources are not observable from the ground are

*Gamma rays

*Infrared at 100 micrometre

*X-ray

*Ultraviolet at 100 nmq

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