differences [2marks]

Question 12 Marks

Differentiate between a concave lens and a convex lens based on their shape, the nature of the image formed, and their two primary uses.

Answer

Feature	Concave Lens	Convex Lens
Shape	Thinner in the middle and thicker at the edges. (Diverging lens)	Thicker in the middle and thinner at the edges. (Converging lens)
Nature of Image	Always forms virtual, erect, and diminished images.	It can form both real and virtual, inverted and erect, and magnified, diminished, or unchanged-sized images, depending on the object's position.
Two Uses	- Correcting short-sightedness - (Myopia)Peepholes in doors	- Magnifying glass - Used in cameras, microscopes, and telescopes

Question 22 Marks

Differentiate between a concave mirror and a convex mirror based on shape, nature of the image formed, and their two uses.

Answer

Feature	Concave Mirror	Convex Mirror
Shape	Curved inward, like the inside of a spoon	Curved outward, like the back of a spoon.
Nature of Image	It can form both real and virtual, inverted and erect, and magnified, diminished, or same-sized images, depending on object positionIt can form both real and virtual, inverted and erect, and magnified, diminished, or same-sized images, depending on object position	Always forms virtual, erect, and diminished images.
Two Uses	- Shaving mirrors/Dentists' mirrors. - Headlights of cars/Searchlights.	- Rear-view mirrors in vehicles. - Security mirrors in shops

Science differences [2marks]