An asteroid passes directly between the Earth and a distant star, occulting (blocking) the star's radiation. The star emits radio waves, visible light, and X-rays.
Which statement is correct?
The radio waves disappear before the visible light and X-rays.
The X-rays disappear before the visible light and radio waves.
The visible light disappears before the radio waves and X-rays.
The radio waves, visible light, and X-rays 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.