Chapter Exam

Chapter 11: Light Shadows and Reflections — Online MCQ Test

Q: Which of the following is a luminous object?

Answer: C. Sun — The Sun gives out its own light, so it is a luminous object. The Moon and the book do not produce light by themselves.

Q: Objects that allow light to pass through them completely are called:

Answer: C. Transparent — Transparent objects let most or all light pass through them. Examples include clear glass and clean water.

Q: Which of the following best describes reflection of light?

Answer: B. Light bouncing back after striking a surface — Reflection is the bouncing back of light from a surface. Mirrors produce clear reflections because they reflect light well.

SCIENCE · Grade 7 · CBSE(NCERT)

Practice Chapter 11: Light Shadows and Reflections with a free chapter-wise online MCQ test for CBSE(NCERT) Grade 7 SCIENCE. This chapter covers: Light Reflection Shadow Mirror Transparent Opaque Translucent Ray Reflection laws Image formation. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 11: Light Shadows and Reflections — Important Questions & Answers (FAQ)

Frequently asked questions from CBSE(NCERT) Grade 7 SCIENCE — Chapter 11: Light Shadows and Reflections, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is a luminous object?

A. Moon
B. Mirror
C. Sun ✓
D. Book

Answer: C. Sun
The Sun gives out its own light, so it is a luminous object. The Moon and the book do not produce light by themselves.

Objects that allow light to pass through them completely are called:

A. Opaque
B. Translucent
C. Transparent ✓
D. Reflective

Answer: C. Transparent
Transparent objects let most or all light pass through them. Examples include clear glass and clean water.

Which of the following best describes reflection of light?

A. Light passing through a glass slab
B. Light bouncing back after striking a surface ✓
C. Light getting absorbed by a black object
D. Light changing into heat only

Answer: B. Light bouncing back after striking a surface
Reflection is the bouncing back of light from a surface. Mirrors produce clear reflections because they reflect light well.

A child stands near a lamp. When the child moves farther away from the lamp, the shadow on the ground becomes larger. This happens because:

A. light becomes weaker with distance only
B. the object blocks a larger spread of rays from the lamp ✓
C. the shadow changes into a reflection
D. the ground becomes transparent

Answer: B. the object blocks a larger spread of rays from the lamp
When the object moves away from the light source, the rays spread out more and the shadow becomes larger. This is a common observation in shadow formation.

A student sees their image in a mirror. Which feature of the mirror makes image formation possible?

A. It absorbs all light
B. It is opaque and dark
C. It reflects light regularly from a smooth surface ✓
D. It allows all light to pass through

Answer: C. It reflects light regularly from a smooth surface
A mirror forms an image because its smooth surface reflects light regularly. This regular reflection allows the reflected rays to appear to come from behind the mirror.