Reflection of Light at Plane and Curved Surfaces: JAMB Physics Questions, Answers & Notes

What Reflection of Light at Plane and Curved Surfaces covers in the JAMB Physics syllabus

Reflection obeys two laws: the incident ray, reflected ray and normal lie in one plane, and the angle of incidence equals the angle of reflection. A plane mirror forms a virtual, upright, same-size image, as far behind as the object is in front, and laterally inverted. Curved mirrors: concave mirrors converge light (uses: shaving mirror, headlamp reflectors) and can form real or virtual images; convex mirrors always form virtual, upright, diminished images with a wide field of view (driving mirrors). Focal length f = R/2. For two mirrors at angle θ, the number of images = (360/θ) − 1.

For Reflection of Light at Plane and Curved Surfaces, JAMB expects you to be able to:

• State and apply the laws of reflection
• Describe images in plane, concave and convex mirrors
• Use focal length f = R/2 and multiple-image formation

Key facts & revision notes: Reflection of Light at Plane and Curved Surfaces

These are the recurring points our Reflection of Light at Plane and Curved Surfaces questions test — revise them until each feels automatic, then practise the questions above to lock them in.

• First law: the incident ray, reflected ray and normal at the point of incidence lie in the same plane.
• Second law: the angle of incidence equals the angle of reflection.
• A plane mirror forms a virtual, upright image, the same size as the object and as far behind as the object is in front.
• The angle of incidence is measured between the incident ray and the normal.
• By the law of reflection, the angle of reflection equals the angle of incidence: 30°.
• A concave mirror curves inward and converges parallel light to a focus.
• Concave mirrors are used as shaving/make-up mirrors and reflectors in headlamps and torches.
• A convex mirror always gives a virtual, upright, diminished image — good for a wide field of view.
• A convex mirror gives an upright, diminished image over a wide field of view, useful for driving.
• The principal focus is where reflected parallel rays meet (concave) or appear to come from (convex).
• Focal length f = R/2, where R is the radius of curvature.
• For an object inside the focal length of a concave mirror, the image is virtual, upright and magnified (like a make-up mirror).
• Lateral inversion means the left and right sides appear reversed in a plane mirror.
• You and your image each move at 1 m/s toward the mirror, so you approach each other at 2 m/s.
• Regular (specular) reflection occurs at smooth surfaces, giving a clear image.
• Diffuse reflection scatters light from a rough surface, which is why we see non-shiny objects.
• The image is as far behind the mirror as the object is in front (15 cm), so the total separation is 30 cm.
• Number of images = (360/angle) − 1 = (360/60) − 1 = 6 − 1 = 5.
• Placing the bulb at the focus of a concave/parabolic reflector produces a strong parallel beam.
• Object and image are equidistant from the mirror.
• The angle of reflection equals the angle of incidence.
• At normal incidence (0°) the ray returns along itself.
• A concave mirror caves inward.
• Between F and C the image is real, inverted and magnified.

Worked examples

Three Reflection of Light at Plane and Curved Surfaces questions with the answer and a short explanation, so you can see how the topic is set before you practise the full set.

How Reflection of Light at Plane and Curved Surfaces is tested in JAMB Physics

Our Reflection of Light at Plane and Curved Surfaces bank holds 40 questions (6 easy, 25 medium, 9 hard). JAMB Physics typically returns to Reflection of Light at Plane and Curved Surfaces year after year, so steady practice on this topic is high-value revision. Questions are multiple-choice with four options, and at UTME pace you get roughly 40 seconds each — which is why timed practice matters.

How to answer Reflection of Light at Plane and Curved Surfaces questions

Work the stem first and predict the answer before you look at the options; then eliminate the ones that contradict the key facts above. Watch for “which is not…”, “all of the above” and “except” style stems, which are where rushed candidates lose easy marks on Reflection of Light at Plane and Curved Surfaces. If a calculation or a precise definition is involved, work it from first principles rather than guessing from a half-remembered rule. When two options look right, re-read the stem for the qualifier that separates them — JAMB rarely repeats an option by accident. If you are still unsure, eliminate the two weakest choices to lift your odds, flag the question, and move on; never burn a full minute on one Physics item when the exam gives you about forty seconds each. Then come back to flagged questions with whatever time remains. The single most reliable way to get faster at Reflection of Light at Plane and Curved Surfaces is repeated timed practice, so use the button above until the recurring patterns feel automatic.

Common mistakes to avoid in Reflection of Light at Plane and Curved Surfaces

The errors that cost marks on Reflection of Light at Plane and Curved Surfaces are usually careless rather than conceptual: misreading a negative stem, confusing two similar terms, or rushing a definition you actually know. Candidates also over-rely on “expo” and last-minute cramming instead of understanding the topic — which fails the moment JAMB rephrases a familiar idea. Treat every option as a claim to be checked against the facts above, keep your working tidy for any calculation, and don’t change a considered answer on a hunch. Above all, revise Reflection of Light at Plane and Curved Surfaces actively by answering questions, not just by re-reading notes — recall under time is what the exam rewards.

Frequently asked questions

Is Reflection of Light at Plane and Curved Surfaces part of the JAMB Physics syllabus?

Yes. Reflection of Light at Plane and Curved Surfaces is a recognised topic in the JAMB Physics syllabus, covering state and apply the laws of reflection. You should be able to recall its key facts and apply them to multiple-choice questions.

How many Reflection of Light at Plane and Curved Surfaces questions can I practise on Belmadeng?

There are 40 original, JAMB-standard Reflection of Light at Plane and Curved Surfaces questions in our free bank, each with the correct answer and a worked explanation. You can practise them untimed or as a timed test.

What are the most important points to know about Reflection of Light at Plane and Curved Surfaces?

Reflection obeys two laws: the incident ray, reflected ray and normal lie in one plane, and the angle of incidence equals the angle of reflection. A plane mirror forms a virtual, upright, same-size image, as far behind as the object is in front, and laterally inverted. Curved mirrors: concave mirror…

How do I answer Reflection of Light at Plane and Curved Surfaces questions quickly in JAMB?

Read the stem carefully, eliminate clearly wrong options, and match the remaining choices to the key facts for Reflection of Light at Plane and Curved Surfaces. Practising timed Reflection of Light at Plane and Curved Surfaces questions builds the speed you need for UTME's pace of about 40 seconds per question.

Are these JAMB Physics Reflection of Light at Plane and Curved Surfaces questions past questions or original?

They are original questions written to JAMB (UTME) standard and mapped to the official syllabus — not reproduced past papers. This keeps them legal to use freely while closely mirroring how the real exam tests the topic.

Where can I practise Reflection of Light at Plane and Curved Surfaces questions free without signing up?

Right here — tap “Start Reflection of Light at Plane and Curved Surfaces practice” on this page to begin instantly. Belmadeng's CBT practice is completely free and needs no sign-up, download or subscription.

About these questions: original, JAMB-standard items written from the official UTME Physics syllabus (last reviewed 2026-09-18). Belmadeng is an independent study platform and is not affiliated with JAMB. Spotted an error? Use the report link.