Report Abuse. Calcium can exist in solid, liquid, or gas form, depending on the temperature. And anything which does not occur naturally is synthetic. The word has nothing to do with elemental properties, as far as I know.twitching_green_grasshopper Â· 7 years ago.olid, liquid and gas are states or phases of an element or substance. But most substances can exist in all three states depending on temperature and pressure.
The basic premise of the telescope tube is to align two lenses the appropriate distance from each other. For this telescope, the lenses are a concave convex (one side curved out and the other curved in) and a plano concave (one flat side and one side curved in). The plano concave lens is used as the eyepiece with the plano (flat) side facing the eye.
e. to account for the motion of objects in the sky as a result of the Earthâs rotation. 29. Radio telescopes are _______ telescopes. * a. Reflecting b. Refracting c. Deflecting d. Compound e. Retracting 30. A telescope whose objective is a lens and contains no mirrors is a(n) _____ telescope. * a. Refracting b. Reflecting c. Deflecting d. Compound e. Retracting 31. In a reflecting telescope the objective is a ____. a. prism * b. mirror c. lens d. diffraction grating e. photographic plate 32. Which has the larger light-gathering power? a. A telescope of 5 cm diameter and focal length of 50 cm. * b. A telescope of 6 cm diameter and focal length of 100 cm. c. A telescope of 2 cm diameter and focal length of 100 cm. d. A telescope of 3 cm diameter and focal length of 75 cm. e. Both b and c since they have the same focal length 33. The resolving power of a telescope is _____.