Question Paper
Class / Subject: Class 9 (SSC) · Science and Technology (विज्ञान आणि तंत्रज्ञान)
Chapter: Chapter 18 — Chapter 18: Observing Space - Telescopes
Time Allowed: 32 minutes
Max Marks: 16
1. What do refracting telescopes use? [1]
(A) Lenses
(B) Mirrors only
(C) Radio waves only
(D) Nothing specific
2. What do reflecting telescopes use? [1]
(A) Mirrors
(B) Lenses only
(C) Radio waves only
(D) Nothing specific
3. What is a telescope's aperture? [1]
(A) The opening size for collecting light
(B) The magnification power only
(C) The colour filter
(D) The eyepiece size only
4. What does a larger aperture provide? [1]
(A) More light, clearer images
(B) Less light, blurrier images
(C) No effect on image quality
(D) Only smaller images
5. Why are space telescopes useful? [1]
(A) They avoid atmospheric distortion
(B) They cost less
(C) They are easier to build
(D) They have no advantage
6. What is an example of a space telescope? [1]
(A) Hubble Space Telescope
(B) Only ground-based telescopes exist
(C) No space telescopes exist
(D) Only radio telescopes
7. What have telescopes helped discover? [1]
(A) Planets, galaxies, phenomena
(B) Nothing significant
(C) Only our own planet
(D) Only the moon
8. Why learn about telescopes? [1]
(A) To understand how we observe space
(B) No reason
(C) It's not useful
(D) Only for tests
9. What do refracting telescopes use? [1]
(A) Lenses
(B) Mirrors only
(C) Radio waves only
(D) Nothing specific
10. What do reflecting telescopes use? [1]
(A) Mirrors
(B) Lenses only
(C) Radio waves only
(D) Nothing specific
11. What is a telescope's aperture? [1]
(A) The opening size for collecting light
(B) The magnification power only
(C) The colour filter
(D) The eyepiece size only
12. What does a larger aperture provide? [1]
(A) More light, clearer images
(B) Less light, blurrier images
(C) No effect on image quality
(D) Only smaller images
13. Why are space telescopes useful? [1]
(A) They avoid atmospheric distortion
(B) They cost less
(C) They are easier to build
(D) They have no advantage
14. What is an example of a space telescope? [1]
(A) Hubble Space Telescope
(B) Only ground-based telescopes exist
(C) No space telescopes exist
(D) Only radio telescopes
15. What have telescopes helped discover? [1]
(A) Planets, galaxies, phenomena
(B) Nothing significant
(C) Only our own planet
(D) Only the moon
16. Why learn about telescopes? [1]
(A) To understand how we observe space
(B) No reason
(C) It's not useful
(D) Only for tests