Where this starts
One spoon, two faces.
Rohit looked into the bowl of a steel spoon while laying out the plates and found his face upside down in it.
📚 Chapter Learning Kit
Light: Mirrors and Lenses · Class 8 Science · Curiosity
English 5 topics 175 leveled MCQs 85 flashcards 5 games Free
Shared by a Veda teacher · Generated with Veda AI · Oct 2026
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The whole idea, one bite at a time
Veda Bites are swipeable micro-lessons — each one teaches exactly one idea. Here's a taste from this kit; the app has the full deck.
Why a spoon reflects
The polish is not the surprise.
Anything polished enough to throw light back works as a mirror, and steel certainly is. So the spoon being a mirror is no puzzle.
The flat baseline
Same size, right way up, always.
A flat mirror is properly called a plane mirror, and it gives back a face the same size as the real one and erect.
A wall of mirrors
Three pictures of two people.
Meena found a row of curved mirrors at a science centre. In the first her own face came back enormous, and her brother, standing further back, was upside down in it.
Why she asked
Her own mirror never does this.
The mirror at home gives her face back at its own size and the right way up, whether she is close to it or across the room.
The experiment that settles it
Stand them side by side.
Put a concave and a convex mirror upright beside each other and set a small toy three or four centimetres in front of them.
📖 Smart notes
What you'll study, topic by topic
1
Mirrors That Curve
A mirror whose reflecting surface is shaped like part of a hollow sphere is a spherical mirror: curving inwards makes it concave, curving outwards makes it convex.
- A plane mirror gives an erect image as large as the object itself, at every distance.
- A mirror with a curved reflecting surface is called a curved mirror.
- A spherical mirror is a curved mirror shaped like a piece of a hollow sphere.
~40 min · full explanation, examples & memory tricks in the app
2
The Images These Mirrors Give
A concave mirror gives an image that changes with distance, a convex mirror always an erect and diminished one - which is why each is used where it is.
- With the object close, a concave mirror gives an erect image larger than the object.
- Moved further away, the image in a concave mirror becomes inverted, and it then shrinks as the object recedes.
- A concave mirror therefore has no single answer: the distance of the object decides the image.
~40 min · full explanation, examples & memory tricks in the app
3
The Laws of Reflection
The angle of incidence equals the angle of reflection, and the incident ray, the reflected ray and the normal all lie in one plane - for every kind of mirror.
- Light is represented by a straight line with an arrow, called a ray, because light travels in a straight line.
- The ray falling on a mirror is called the incident ray.
- The ray that returns off the mirror is the reflected ray.
~45 min · full explanation, examples & memory tricks in the app
4
Mirrors That Gather or Spread Light
A parallel set of beams stays parallel off a plane mirror, converges off a concave one and diverges off a convex one - which is how sunlight is concentrated.
- Many open gaps in a comb give a set of thin beams travelling side by side, which start out parallel.
- Reflected from a plane mirror, a parallel set of beams stays parallel.
- Reflected from a concave mirror, the beams draw together - they converge.
~40 min · full explanation, examples & memory tricks in the app
5
Lenses: Looking Through Curved Glass
A lens is transparent with curved surfaces: a convex lens is thicker in the middle and converges light, a concave lens thicker at the edges and diverges it.
- A lens is a transparent piece of material, commonly glass or plastic, carrying curved surfaces.
- A drop of water resting on a greased strip has an outward curved surface and acts as a simple lens.
- A lens thicker at the middle than at the edges is a convex lens.
~45 min · full explanation, examples & memory tricks in the app
❓ Leveled MCQ practice
Try the smart MCQs from this kit
175 questions laddered from warm-up to topper-level, each with an explanation. A taste:
A mirror whose reflecting surface is shaped like part of a hollow sphere is called
Beginner
A a flat sheet of glass
B a spherical mirror
C a flat plane mirror
D a rectangular mirror
Show answer & explanation
a spherical mirror
The name follows the shape: the surface is a piece taken out of a sphere, which is also why its rim is circular.
A spherical mirror whose reflecting surface curves inwards is
Beginner
A a convex mirror
B a plane mirror
C a diverging glass
D a concave mirror
Show answer & explanation
a concave mirror
Concave has a cave in it, and a cave goes inwards. The one that curves outwards is the convex mirror.
Looking along a mirror from the side, a pupil sees that its reflecting surface bulges outwards towards her. That surface belongs to
Beginner
A a convex mirror
B a concave mirror
C a flat plane mirror
D a curved glass lens
Show answer & explanation
a convex mirror
Convex begins the way exit does, and the surface pushes out towards whoever is looking.
Rohit looks into the bowl of a steel spoon held close to his face and finds the picture of his face turned upside down. Which mirror is the bowl behaving as?
Beginner
A No mirror at all
B A concave mirror
C A convex mirror
D A plane mirror
Show answer & explanation
A concave mirror
The bowl of a spoon caves inwards, so it behaves as a concave mirror.
🃏 Flashcards
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Categorization
Fact Or Myth
Sequence Builder
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Speed Quiz
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