A ray of monochromatic light travels from a crown glass block into water - Scottish Highers Physics - Question 18 - 2023
Question 18
A ray of monochromatic light travels from a crown glass block into water.
The diagram shows three paths P, Q, and R for the ray of light in the water.
Which row in ... show full transcript
Worked Solution & Example Answer:A ray of monochromatic light travels from a crown glass block into water - Scottish Highers Physics - Question 18 - 2023
Step 1
Speed and Wavelength
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Answer
When light enters a medium of higher density (from crown glass to water), its speed decreases and its wavelength also decreases. Hence, the correct answer for speed and wavelength is:
Speed: increases
Wavelength: increases
Step 2
Path followed by the ray
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Answer
The ray of light will bend towards the normal, following path P in the water.
Step 3
Final Answer
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Answer
Thus, the correct row in the table is E: Speed increases, Wavelength increases, Path P.
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