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This question is about light - Edexcel - GCSE Physics - Question 7 - 2021 - Paper 1
Question 7
This question is about light. (a) White light includes all the colours in the visible spectrum. A beam of white light is the only light that shines on a book. The b... show full transcript
Worked Solution & Example Answer:This question is about light - Edexcel - GCSE Physics - Question 7 - 2021 - Paper 1
Step 1
What colour does the book appear now?
Answer
When white light shines on the book, it appears green because it reflects green light and absorbs other colors. When a red filter is placed between the light source and the book, only red light passes through the filter. Therefore, the book will now appear black since it cannot reflect red light—only green light. Hence, the answer is A black.
Step 2
This clear image is an example of
Answer
The image of a building on the shiny metal ball is clear due to specular reflection. Specular reflection occurs when light rays are reflected in a single direction and maintain the clarity of the image, unlike diffuse reflection which scatters light in multiple directions. Thus, the correct answer is C specular reflection.