Observing Space : Telescopes — Important Questions
Maharashtra Board · Class 9 · Science
44 important questions from Observing Space : Telescopes for Maharashtra Board Class 9 Science, with answers. Includes multiple choice, multiple correct.
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Important Questions from Observing Space : Telescopes
Which types of electromagnetic radiation can pass through Earth's atmosphere? (Select all correct answers)
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Visible light, Radio waves
Only visible light and radio waves can pass through Earth's atmosphere effectively. X-rays, gamma rays, and most ultraviolet rays are absorbed by the atmosphere.
GMRT stands for Giant Meterwave Radio Telescope.
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True
GMRT stands for Giant Meterwave Radio Telescope. It is located near Pune and uses radio waves with wavelengths of about a meter.
What problems do ground-based telescopes face? (Select all correct answers)
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Atmospheric absorption of light, Image shaking due to atmospheric turbulence, Interference from city lights, Cloudy weather
Ground-based telescopes face multiple problems: light absorption by atmosphere, image shaking due to turbulence, city light pollution, and weather interference.
The Hubble telescope was launched in which year?
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1990
The Hubble Space Telescope was launched by NASA in 1990. It orbits Earth at a height of 589 km and is still working today.
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