| A group of students used a data logger to measure the amount of light passing through three different materials, a, b and c. The results are shown in the graph below. |
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| Based on the graph, which of the following options is correct? |
A)
Statement
True
False
Not possible to tell
Material a allows no light to pass through it.
B)
Statement
True
False
Not possible to tell
Material b allows more light to pass through it than material c.
C)
Statement
True
False
Not possible to tell
Material c could be clear plastic sheet.
D)
Statement
True
False
Not possible to tell
Shadow is formed by material a.
Correct Answer: B
Solution :
Material b allows maximum light to pass through it, hence it could be a transparent material. Material a does not allow any light to pass through it, hence, it is an opaque material and opaque material cast shadow when light shone on them. Material c allows some but not all light to pass through it hence it could be any translucent object.
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