Introduction Flashcards
1
Q
What do you mean by reflection of light?
A
The process of sending back of light that falls on the surface of an object
2
Q
List the Laws of reflection
A
- The angle of incidence is equal to the angle of reflection
3
Q
Characteristics of a plane mirror
A
- Virtual and erect
- Size of the image is equal to the size of the object
- It is latterly inverted
4.obj distance = img distance
4
Q
Uses of plane mirror
A
- looking mirror
2.fitted at blind turns to prevent from accidents
3.used to make periscope, kaleidoscope
5
Q
What do you mean by real image?
A
It is formed when a light rays from an object actually meet at an point after reflection or refraction
6
Q
What do you mean by virtual image?
A
It is formed when a light rays from an object appears to meet at an point after reflection or refraction
7
Q
Which type of image can be seen on screen?
A
Real image
8
Q
Which type of image is inverted?
A
Real image
9
Q
Which type of image cannot be seen on screen?
A
Virtual image
10
Q
Which type of image is erect?
A
Virtual image
11
Q
Which type of image is formed by a plane, concave and convex mirror?
A
Virtual image
