An occultation occurs when a celestial body, such as the Moon, moves in front of a distant star and blocks its light. A distant star emitting radio waves, visible light, and X-rays is occulted by the Moon.
Which statement is correct?
Radio waves from the star disappear before visible light and X-rays.
X-rays from the star disappear before visible light and radio waves.
Visible light from the star disappears before radio waves and X-rays.
Radio waves, visible light, and X-rays from the star all disappear at the same moment.
198 exam-style questions on CIE IGCSE Physics Electromagnetic spectrum, covering Electromagnetic spectrum. Each one has a worked solution and a mark scheme showing where the marks go.