Advertisements
Advertisements
प्रश्न
Define reflection.
Advertisements
उत्तर
The bouncing of light by any smooth or polished surface is called.
APPEARS IN
संबंधित प्रश्न
State the characteristics of the image formed by a plane mirror.
Fill in the blank
A plane mirror _________ reflects 100 percent light falling on it.
Draw a figure describing the following.
The reflecting surface of two mirrors make an angle of 90∘ with each other. If a ray incident of one mirror has an angle of incidents of 30∘, draw the ray reflected from the second mirror. What will be its angle of reflection?
Explain the differences between regular and irregular reflection light.
Describe the principle of simple periscope through an outline ray diagram. Give one of its uses.
An object 1.5 cm high when placed in front of a concave. the mirror produces a virtual image 3 cm high. If the object is placed at a distance of 6 cm from the pole of the mirror, calculate:
- the position of the image
- the focal length of the mirror.
Identify the following kind of beam of light.
Find the odd one.
sun, candle, torch, pen
What kind of surface reflects light?
