1. Look at the green paper or cloth through the red cellophane or glass.
What color does it appear to be?
Tell why it does not appear green.
2. Look at the red paper or cloth through the red cellophane or glass.
What color does it appear to be?
Why does it still appear red?
3. Look at the white paper or cloth through the red cellophane or glass.
What color does it appear to be?
Why does it appear the same color of the cellophane or glass?
4. Look at the black paper or cloth through the red cellophane or glass.
What color does it appear to be?
Why does it appear to be black?
Answers
Answer:
1. If you look through red cellophane, everything on the other side appears to be shades of red. If you look through green glass, everything appears green. Green cellophane will only allow green light to pass through it. The cellophane absorbs other colours of light.
2. If you pass white light through a red filter, then red light comes out the other side. This is because the red filter only allows red light through. The other colours (wavelengths) of the spectrum are absorbed. Similarly, a green filter only allows green light through.
3. Cellophane and coloured glass are also transparent because you can see through them. However, the colour of what you see is changed. If you look through red cellophane, everything on the other side appears to be shades of red. If you look through green glass, everything appears green.
4. Cellophane and coloured glass are also transparent because you can see through them. However, the colour of what you see is changed. If you look through red cellophane, everything on the other side appears to be shades of red.
1. Everything on the opposite side of red cellophane appears to be hues of red when viewed through it. Everything appears green when viewed through green glass. Only green light is allowed to flow through green cellophane. Other colours of light are absorbed by the cellophane.
2. When white light passes through a red filter, red light emerges on the other side. Because the red filter only permits red light to get through, this is the case. The spectrum's other colours (wavelengths) are absorbed. A green filter, on the other hand, permits only green light to pass through.
3. Because you can see through cellophane and coloured glass, they are likewise transparent. The colour of what you see, however, has changed. Everything on the opposite side appears to be shades of red when viewed through red cellophane. Everything appears green when viewed through green glass.
4. Because they can be seen through, cellophane and coloured glass are also transparent. The colour of what you perceive, on the other hand, has been altered. Everything on the other side looks to be hues of red if you gaze through red cellophane.
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