What is a Periscope?
A periscope is a tube which people inside submarines can look through to see above the surface of the water.
What is the basic principle of a periscope based on?
Reflection of Light
How does a Periscope work?
A periscope works by using two mirrors to reflect light from one mirror to another for the person to see the things above the ground/sea
How many mirrors does a periscope have?
a) 4,
b) 2,
c) 3
2
What is the angle of mirrors in periscope?
45 degrees
What kind of an Image does a Pin-Hole Camera make?
It makes a smaller image than the object, and also inverted (upside down)
What kind of image does a bigger hole make in a Pin-Hole Camera?
Brighter and Blur
What is a Plane Mirror?
flat mirror; reflecting surface that has no curvature
Type of mirror used in a Periscope?
a) Curved Mirror,
b) Plane mirror
Plane Mirror
Image of a pinhole camera is .............
a) Real,
b) Virtual
Real
