The weight is 56 lbs at senior level, and 35 lbs in underage level. It is mainly a men's event, though women's weight throw for distance is contested at university level.
A visible band image of Jupiter is shown below the radio image. Radio telescopes are much larger than optical telescopes because radio wavelengths are much longer than optical wavelengths. The longer wavelengths means that the radio waves have lower energy than optical light waves. In order to collect enough radio photons to detect a signal, the radio dishes must be very large.
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 _____.