Advertisements
Advertisements
Question
A wall reflects light and a mirror also reflects light. What difference is three in the way they reflect light?
Advertisements
Solution
| 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
RELATED QUESTIONS
An extended object in the form of an arrow pointing upward has been placed in front of a plane mirror. Draw a labelled ray-diagram to show the formation of its image.
With the help of a labelled ray-diagram, describe how a plane mirror forms an image of a point source of light placed in front of it. State the characteristics of the image formed in a plane mirror.
The image in a plane mirror is virtual and laterally inverted. What does this statement mean?
A man stands 10 m in front of a large plane mirror. How far must the walk before he is 5 m away from his image?
State whether the following statement is true or false:
Refraction occurs because light slows down in denser materials.
Light travels more quickly through water than through glass.
Which is optically denser : water or glass?
Name the phenomenon due to which a pencil partly immersed in water and held obliquely appears to be bent at the water surface.
The depth of a pond when seen from above appears to be less.
The laws of reflection hold true for ______.
Due to _______ pencil looks bent in water, in the given experiment.
Write scientific reason.
The bottom of a pond appears raised.
Explain the working of a periscope.
Explain with diagrams how refraction of incident light takes place from
- rarer to denser medium
- denser to rarer medium
- normal to the surface separating the two media.
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
Mirage is an example of refraction and the total internal reflection of light.
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 |
In refraction of light through a glass slab, the directions of the incident ray and the refracted ray are ______.
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.
