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प्रश्न
What is meant by 'reflection of light'?
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उत्तर
The process of sending back light rays that fall on the surface of an object is called reflection of light.
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संबंधित प्रश्न
State whether the following statement is true of false:
A student says that we can see an object because light from our eyes is reflected back by the object.
A wall reflects light and a mirror also reflects light. What difference is three in the way they reflect light?
Define the following terms used in the study of reflection of light by drawing a labelled ray-diagram:
(a) Incident ray
(b) Point of incidence
(c) Normal
(d) Reflected ray
(e) Angle of incidence
(f) Angle of reflection
The image of an object formed by a plane mirror is:
(a) virtual
(b) real
(c) diminished
(d) upside-down
A ray of light travelling in glass emerges into air. State whether it will bend towards the normal or away from the normal.
Light travels more quickly through water than through glass.
If a ray of light passes from glass into water, which way will it bend : towards the normal or away from the normal?
Image is formed by a mirror due to refraction of light.
When a ray of light travels from air to glass, it bends .......... the normal.
What do you understand by refraction of light?
The diagram (figure) given below shows two parallel rays 1 and 2 incident on (a) a concave mirror, (b) a convex mirror. Draw the reflected rays and mark the focus by the symbol F.
What is the cause of refraction of light when it passes from one medium to another?
The incident rays and refracting rays are on opposite sides of the normal.
State whether true or false. If false, correct the statement.
The angle of deviation depends on the refractive index of the glass.
The angle of incidence from air to glass at the point O on the hemispherical glass slab is.
Which object use the reflection of light?
When light passes from one medium to another the ray gets bent. This property of light is called ______.
A ray of light traveling in medium 1 strikes and travels into another transparent medium 2. If the speed of light is greater in medium 1, the ray will ______.
Twinkling of stars and Mirage are the two phenomena occurring due to refraction.
A ray of light starting from diamond is incident on the interface separating diamond and water. Draw a labelled ray diagram to show. the refraction of light in this case.
