6.1 What types of mirrors are used in the diagram? Explain - NSC Technical Sciences - Question 6 - 2024 - Paper 1
Question 6
6.1 What types of mirrors are used in the diagram? Explain.
6.2 The angle of incidence at which ray A strikes mirror 1 is 1°.
6.2.1 Describe the term angle of inci... show full transcript
Worked Solution & Example Answer:6.1 What types of mirrors are used in the diagram? Explain - NSC Technical Sciences - Question 6 - 2024 - Paper 1
Step 1
What types of mirrors are used in the diagram? Explain.
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Answer
The mirrors used in the diagram are plane mirrors. Plane mirrors reflect light in a consistent manner, where the angle of incidence equals the angle of reflection. They are flat and allow for the clear transmission of images without distortion.
Step 2
The angle of incidence at which ray A strikes mirror 1 is 1°.
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Step 3
Describe the term angle of incidence.
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Answer
The angle of incidence is defined as the angle formed between the incoming ray (incident ray) and the normal line, which is an imaginary line perpendicular to the surface at the point of incidence.
Step 4
How will the magnitude of the angle at which ray A is reflected compare to angle 1°? Write down EQUAL TO, SMALLER THAN or GREATER THAN.
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The angle at which ray A is reflected will be EQUAL TO 1°.
Step 5
Write down the NAMES OF TWO physical phenomena that take place at point A as white light strikes the water droplet.
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Answer
Refraction
Dispersion
Step 6
Explain why white light splits into its component colours as it passes the air-water interface.
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White light splits into its component colors as it passes through the air-water interface due to refraction. Different wavelengths of light bend by varying degrees when entering a new medium, causing the colors to spread out.
Step 7
Define the term critical angle.
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The critical angle is the angle of incidence above which total internal reflection occurs when light moves from a more optically dense medium to a less optically dense medium.
Step 8
Write down the NAME of the phenomenon described by the underlined words.
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Total internal reflection.
Step 9
Suggest ONE practical application of the phenomenon taking place from section BC to DE.
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One practical application of total internal reflection is in optical fibers, which are used for data transmission in telecommunication systems.