Because certain objects can absorb specific wavelengths of light(color) and they reflect the waves that they cannot absorb. the reflected wave of light is the visible color of the object.
This applies not only to opaque objects. The basic idea is that white light is a mixture of different colors, and objects tend to reflect the different colors - the components of white light - in different proportions. For example, an object that reflects most of the red light but not much of the other colors will look red.
it depends on what kind of object is that
By shining light on other objects.
White light is a mixture of different colors. A red object (for example) would reflect a greater percentage of red light, and a lesser percentage of other colors, thus making the light that you see redder.
Each material reflect different the light waves.
This applies not only to opaque objects. The basic idea is that white light is a mixture of different colors, and objects tend to reflect the different colors - the components of white light - in different proportions. For example, an object that reflects most of the red light but not much of the other colors will look red.
it depends on what kind of object is that
Shining a white light through a glass prism will split the light into rainbow colours.
By shining light on other objects.
They do because of the absorption of the light from the sun!!! I think not sure
absorption and reflection of different wavelengths of light