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Chapters
2: Work and Energy
3: Current Electricity
4: Measurement of Matter
5: Acids, Bases and Salts
6: Classification of Plants
7: Energy Flow in an Ecosystem
8: Useful and Harmful Microbes
9: Environmental Management
10: Information Communication Technology (ICT)
11: Reflection of Light
12: Study of Sound
13: Carbon: An important element
14: Substances in Common Use
15: Life Processes in Living Organisms
16: Heredity and Variation
17: Introduction to Biotechnology
▶ 18: Observing Space: Telescopes
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Solutions for Chapter 18: Observing Space: Telescopes
Below listed, you can find solutions for Chapter 18 of Maharashtra State Board Balbharati for Science and Technology [English] 9 Standard Maharashtra State Board.
Balbharati solutions for Science and Technology [English] 9 Standard Maharashtra State Board 18 Observing Space: Telescopes Exercise [Page 214]
The wavelength of visible light is between ______ and ______.
GMRT is used for ______ waves.
A certain X-ray telescope is named after scientist ______.
The first scientist to use a telescope for space observation was ______.
The biggest optical telescope in India is situated at ______.
Form pairs.
| ‘A’ Groups | ‘B’ Groups | ||
| (i) | X-rays | (a) | GMRT |
| (ii) | Optical Telescope | (b) | ISRO |
| (iii) | Indian radio | (c) | Hubble |
| (iv) | Launching artificial satellites | (d) | Chandra |
What are the difficulties in using ground-based optical telescopes? How are they overcome?
Which type of telescope can be made using a concave mirror, convex mirror, plane mirror and a lens? Draw diagrams of these telescopes.
Study the figure and answer the following questions.
- What type of telescope is shown in the figure?
- Label the main parts of the telescope.
- Which type of mirror does the telescope use?
- What other type of telescope uses a curved mirror?
- Explain the working of the above telescope.
Answer the following questions.
Explain the construction of Galileo’s telescope.
Explain the construction of a radio telescope.
Why are optical telescopes located in uninhabited places on mountains?
Why can an X-ray telescope not be based on the earth?
Solutions for 18: Observing Space: Telescopes
Balbharati solutions for Science and Technology [English] 9 Standard Maharashtra State Board chapter 18 - Observing Space: Telescopes
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Concepts covered in Science and Technology [English] 9 Standard Maharashtra State Board chapter 18 Observing Space: Telescopes are Different Forms of Light, Telescope, Indian Space Research Organization (ISRO), Astrosat, Introduction to Observation of Space, Types of Telescope: Optical Telescope, Types of Telescope: Radio Telescope, Types of Telescope: Telescopes Used in Space.
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