Class 7 Science Chapter 11: Light: Shadows and Reflections — practice questions with answers
Free practice for Class 7 Science, Chapter 11: Light: Shadows and Reflections. Try the solved questions below, then take a free test with instant marking and explanations.
28 questions12 easy, 13 medium, 3 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. What is the main source of natural light on the Earth?
- The Sun
- The Moon
- Fireflies
- Lightning
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Answer: A. The Sun
Why: The Sun emits its own light and is the main natural source. [p.154]
Why: The Sun emits its own light and is the main natural source. [p.154]
Q2. Objects that emit their own light are called ______ objects.
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Answer: luminous
Why: Luminous objects emit their own light; others are non-luminous. [p.154]
Why: Luminous objects emit their own light; others are non-luminous. [p.154]
Q3. In the matchbox activity, what happens when one box is moved out of line?
- The spot of light on the screen disappears
- The spot gets brighter
- The light bends around
- Nothing changes
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Answer: A. The spot of light on the screen disappears
Why: Light reaches the screen only when the holes are in a straight line — light travels in a straight line. [p.155]
Why: Light reaches the screen only when the holes are in a straight line — light travels in a straight line. [p.155]
Q4. Why can you not see a candle flame through a bent pipe?
- Light travels in straight lines
- The pipe absorbs heat
- The flame is too small
- Pipes are luminous
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Answer: A. Light travels in straight lines
Why: Light from the flame cannot follow the bend. [p.155, p.166]
Why: Light from the flame cannot follow the bend. [p.155, p.166]
Q5. It is safe to point a laser beam at a friend’s eyes for a short time.
True or false?
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Answer: False
Why: Never point a laser at anyone’s eyes — it can cause serious eye damage. [p.156]
Why: Never point a laser at anyone’s eyes — it can cause serious eye damage. [p.156]
Q6. Light passes almost completely through which kind of material?
- Transparent
- Translucent
- Opaque
- Metallic
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Answer: A. Transparent
Why: Light passes almost fully through transparent, partly through translucent, and not through opaque materials. [p.156–157, p.165]
Why: Light passes almost fully through transparent, partly through translucent, and not through opaque materials. [p.156–157, p.165]
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Frequently asked questions
How many practice questions are there for Class 7 Science Chapter 11: Light: Shadows and Reflections?
28 questions (12 easy, 13 medium, 3 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 7 Science syllabus, used by CBSE and many state boards.