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10We can see objects in a dark room without any source of light.
Sunlight helps us to see objects during the daytime.
Light must reach our eyes to see an object.
Reflection of light means absorption of light.
A mirror has a smooth surface.
Regular reflection occurs on rough surfaces.
Irregular reflection helps in the formation of image.
Incident ray is the ray that returns after striking a surface.
Normal is a line drawn perpendicular to the reflecting surface.
The angle of incidence is denoted by ∠i.
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Which form of energy helps us to see objects?
Which of the following is a source of light?
Which part of the eye helps us to see images?
Reflection of light mainly occurs on:
Which surface gives regular reflection?
Regular reflection helps in:
Which surface causes irregular reflection?
The ray that strikes the surface is called:
The angle between the incident ray and the normal is called:
Normal always makes an angle of ____ with the surface.
We need ______ to see objects.
Sun is a natural source of ______.
Reflection of light is the process of light ______ back after striking a surface.
A mirror gives ______ reflection.
Rough surfaces cause ______ reflection.
Image is formed due to ______ reflection.
The ray that falls on a surface is called ______ ray.
The ray that returns back is called ______ ray.
Normal is drawn ______ to the reflecting surface.
The ______ of reflection is denoted by ∠r.