GSEB Class 7 English How Things Work Solutions
Q: What type of mirror is typically used for car side mirrors?
Convex mirror.
Q: What type of image does a convex mirror produce?
An upright, diminished image.
What is the advantage of using a convex mirror on a car?
It provides a wider field of view.
What is the characteristic of the image produced by a convex mirror?
It is always virtual, diminished, and erect.
Q: What happens to the size of the image produced by a convex mirror as an object gets closer to the mirror?
The image gets larger until it reaches approximately the size of the object when it touches the mirror.
Activity 4
Q: What makes stars and fireflies shine with their own light?
They produce their own light.
Q: What happens when photons of light hit most things?
They bounce back.
Q: What happens when photons hit a hard and smooth surface?
All the photons bounce back and the surface looks like a plane.
Q: What happens when photons hit a soft and rough surface, such as a blanket?
The photons bounce back at different angles.
Q: How do we see the shape of things?
