6.1 Write down the name of the physical phenomenon that is illustrated in the diagram above - NSC Technical Sciences - Question 6 - 2023 - Paper 1

The relationship between the angles θ₁ and θ₂ is that they are equal, expressed mathematically as: $θ₁ = θ₂$.

1. The image is the same size as the object and is formed at the same distance from the mirror as the object.

2. The image is virtual and laterally inverted (it appears flipped left to right).

1. The wavelength of the light ray increases as it moves from water to air.

2. The light ray bends away from the normal; this bending occurs because the angle of refraction is less than the corresponding angle of incidence.

If the angle of incidence is increased to 50°, which is greater than the critical angle, total internal reflection would occur. Consequently, the light ray would be reflected back into the water rather than refracted into the air.

In this step, you should redraw the provided diagram, making sure to:

• Draw the light ray entering from the water into the air.
• Indicate the critical angle of 48.6°.
• Show the incident ray at 50°.
• Label the reflected ray and the incident ray appropriately.