Advertisements
Advertisements
प्रश्न
A wall reflects light and a mirror also reflects light. What difference is three in the way they reflect light?
Advertisements
उत्तर
| S.No. | Wall Reflected Light | Mirror Reflected Light |
| 1 | Light rays are reflected in all directions due to the rough surface. | Light rays are reflected in one direction only due to the smooth surface. |
APPEARS IN
संबंधित प्रश्न
What are the important differences between looking at a photograph of your face and looking at yourself in a plane mirror?
State the uses of plane mirrors.
Write all the capital letters of the alphabet which look the same in a plane mirror.
The angle of reflection is equal to the angle of incidence:
(a) always
(b) sometimes
(c) under special conditions
(d) never
The figure given alongside shows the image of a clock as seen in a plane mirror. The correct time is:
As light rays pass from water into glass, are they refracted towards the normal or away from the normal?
Why does a ray of light bend when it travels from one medium to another?
The speed of light is more in glass than in water.
List in proper sequence the steps of the experiment for determining the approximate focal length of a given concave mirror by obtaining the image of a distant object.
Explain how the formation of a rainbow occurs.
Due to _______ pencil looks bent in water, in the given experiment.
Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is _______ nm.
Right or wrong sentence.
The incident rays and refracted rays are on opposite sides of the column.
The refractive index of four substances A, B, C, and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in
What is refractive index?
Why a pencil partly immersed in water appears to be bent at the water surface.
Match the following:
| Column I | Column II | ||
| 1. | r > 90 | a. | Light gazes at the surface of separation between the two modes. |
| 2. | r = 90 | b. | No refraction. |
| 3. | r < 90 | c. | Refracted ray away from the normal |
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.
The absolute refractive index of a medium is given by:
A larger refractive index of a medium means that light travels:
