Physics
In a periscope, two plane mirrors are inclined at an angle of …………… with the vertical walls.
- 0°
- 30°
- 45°
- 60°
Related Questions
How many plane mirrors are used in a periscope and kaleidoscope ?
- 2 and 3 respectively
- 3 each
- 3 and 2 respectively
- 2 and 4 respectively
In a kaleidoscope, three plane mirrors are inclined with each other at an angle of :
- 0°
- 30°
- 60°
- 90°
What is the most common use of a plane mirror ?
How does an optician increase the effective length of his room by using a mirror ? Where does he place the sign board