An astronomical satellite observes a distant star being occulted (blocked) by the Moon as the Moon passes in front of it. The star emits radio waves, visible light, and X-rays.
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.