Question

Opaque objects:
A. reflect most of the light falling on them
B. transmit most of the light falling on them
C. absorb most of the light falling on them
D. both A and C

Answer 1

Hint: When light falls on different objects, it behaves differently depending on the material the object is made up of. Objects are classified into three types depending upon the amount of light it allows to pass through them.

Complete step by step answer:
First, let's get clear with how we see objects or what is a sense of vision.
When a beam of light falls on an object coming from its source (mainly, sun) then this light gets reflected in all directions after striking that object. The reflected light then reaches our eyes and this information is sent to our brain which deciphers the information to detect the appearance, location or the movement of the object. Hence, we are able to see the objects around us.

Now the light reflected varies from object to object. On this basis, objects are classified into three types:
1. Transparent objects
2. Translucent objects
3. Opaque objects
Opaque objects are those objects that light is able to pass through at all. They reflect most of the light falling on them. When they are held up to a source of light, they form shadows.
For example, we are opaque. If you hold your hand up to a light source you will see no light passes through it.
Books, stones, wood are some more examples of opaque objects.

So, the correct answer is (D).

Note: There are objects which allow some of the light to pass through them and stop some of the light. So, we get a foggy or not clear appearance, these objects are called translucent objects. For example, plastic or frosted glass.