Unit 7 · Energy in Daily Life

Ray diagram for concave and convex mirror

ScienceSubject
8 minEstimated read
1Write the difference between a real image and a virtual image.
2Give the reason why a concave mirror is used in a solar cooker.
3Give the reason why a convex mirror is used as the side mirror of a vehicle.
4Give the reason why a convex mirror and a plane mirror cannot form a real image.
5Write down what the image formed by a concave mirror depends on.
6Which mirror is suitable for shaving and for putting on make up, and why?
7What is the reason for using a convex mirror in street lamps?
8Write what kind of image a concave mirror forms when the object is placed: (a) beyond the centre of curvature C, (b) at infinity, (c) between C and F.
9At which single position in front of a concave mirror does the image come out the same size as the object? State the nature of that image too.
10When does a concave mirror form a virtual image, and what is that image like?
11Why is a concave mirror placed inside a torch?
12When an object is moved nearer to or further from a convex mirror, which three things about the image never change?