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प्रश्न
How will you explain the statement 'we cannot see the objects in a dark room'?
उत्तर
Light enables us to see objects around us. We see an object when light falls on it and gets reflected from its surface and enters our eyes. In a dark room, there is no source of light. Thus, no light falls on the surface of objects, and hence we do not see them. This is why we cannot see the objects in a dark room.
संबंधित प्रश्न
The reflection of light from a wooden surface is _________ reflection.
If the angle between the plane mirror and the incident ray is 40∘, what are the angles of incidence and reflection?
Draw a figure showing the following.
- Incident Ray
- Normal
- Angle of incidence
- Angle of reflection
- Point of incidence
- Reflected ray
Draw a diagram to show the reflection of a ray of light using a plane mirror. In the diagram, label the incident ray, the reflected ray, the normal, the angle of incidence and the angle of reflection.
Complete the ray diagram to show the image observed by the eye after reflection in the following figure.
Dull materials reflect light.
Higher Order Thinking Skills.
When a ray of light passes from air into glass, is the angle of refraction greater than or less than the angle of incidence?
Which of the following can make a parallel beam of light when light from a point source is incident on it?
Part of the eye which controls the entering of light is called
The image formed by a plane mirror is always as far behind the mirror as far the object lies in front of it.
