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- 6
- How much is 5 + 5?
- 9
- 10
- 11
- 12
- 13
- r5
- B
- B
- How much is 4 + 4?
- 5
- 6
- 7
- 8
- 9
- r4
- D
- D
- How much is 1 + 1?
- 1
- 2
- 3
- 4
- 5
- r1
- B
- B
- The type of spectrum produced by a hot luminous solid is
- Emission line
- Continuous
- Absorption line
- Confined to the infared
- Confined to the Ultraviolet
- [Blank]
- B
- D
- The biggest optical telescopes in existence are refractors
- true
- false
- [Blank]
- [Blank]
- [Blank]
- [Blank]
- B
- B
- A refracting telescope can suffer
- spherical aberration
- chromatic aberration
- both a & b
- [Blank]
- [Blank]
- [Blank]
- B
- A
-