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Light: Shadows and Reflections — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceLight: Shadows and Reflections3 Marks
Question
Read the passage and answer the questions :
Ravi uses a torch, a thin plastic sheet, and a cardboard to investigate how different materials affect the path of light.
Q.1.  What kind of object is a thin plastic sheet?
(a) Transparent$\quad$(b) Translucent
(c) Either (a) or (b)$\quad$(d) Opaque
Q.2. Which object will form the darkest shadow?
(a) Red plastic$\quad$(b) Glass
(c) Thick cardboard$\quad$(d) Tracing paper
Q.3. Light passes partially through which of the following?
(a) Wood$\quad$(b) Mirror
(c) Tracing paper$\quad$(d) Steel
✓

Answer

(b) Translucent
(c) Thick cardboard
(c) Thick cardboard

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