Across
- 4. Series of coloured lines
- 7. Apparently rather than actually
- 8. Objects in motion through space
- 10. Irregular fluctuation of velocity
- 11. Direction of vibration of wave in one plane
- 13. Constituent of a whole
- 14. Mathematical study of continuous change
- 15. Rotation about _ _ _ _
- 16. Objects that emit their own light
Down
- 1. Action done without any perceptible time
- 2. Used to measure scientific quantities
- 3. Measure to enhance clarity
- 5. Tube with a small bore
- 6. Term commonly used in celestial mechanics
- 8. A general scientific theorem or law
- 9. A carrier to transfer energy
- 12. Absolute value of a real number
- 14. Laser is a _ _ _ _ _ _ _ _ light