Question

We are able to see objects around us because _ _ _ _ _ _.
A.) Absorb all the light.
B.) The light reflected from the object enters our eyes
C.) Light can be reflected
D.) Light travels in a straight line.

Answer 1

Hint: Light is reflected by an opaque object. An opaque object is an object which does not allow light to transmit through. But it will absorb certain wavelengths of light and reflect some of the light falling on it.

Complete step by step answer:

We are able to see objects in front of us due to the light reflected by it. When a light falls on an opaque object, which is an object that does not allow light to pass through it, so these objects have absorption zones present in them which allows them to absorb most of the wavelength falling on them and reflect other wavelengths which are absorbed.
We say that the colour of a leaf is green because only the green wavelength is being reflected by the leaf and the rest of the wavelengths are absorbed. So if a body appears white to us, then the body reflects all the light that is falling on it.

So we see the objects because it reflects light and that light enters our eyes.

So the answer to the question is option (B)- The light reflected from the object enters our eyes.

Note: Transparent objects are objects which allow light to transmit through them. It absorbs some of the light passing through it and transmits all other wavelengths. A transparent material will have a single refractive index throughout its composition. So most of the light can pass through it, without being scattered.
A translucent allows a part of the radiation falling on it to pass through. A translucent object consists of multiple refractive indexes inside them. So, the light trying to pass through the material gets scattered, so the light does not fully transmit through the material.