Which type of mirrors are used in the following? Periscope, floodlights, shaving mirror, kaleidoscope, street lights, headlamps of a car.


Periscope: Simple Periscope uses Plane Mirrors because light just strikes the mirror to reach viewer eye.
Flood Lights: Concave Mirrors are used in the floodlights.
Shaving Mirror: Concave Mirrors are used in shaving mirrors because when the face is kept between the focus and pole of the mirror the magnified, erect and virtual image is formed.
Kaleidoscope: Plane Mirrors are used in the Kaleidoscope because only reflecting surface is needed.
Street Light: Convex Mirrors are used in the street light because it diverges the rays of the light upto large distance .
Head Lamp of car: Concave mirrors are used in the Head Lamp of car because if the bulb is kept at focus of the mirror the rays from bulb will go to a larger distances ( infinity).

Final answer:-
Hence the mirrors used in the following are
Periscope – Flat mirror.
Floodlights – Concave mirror.
Shaving mirror – Concave mirror.
Kaleidoscope –Two or more surfaces tilted to each other.
Street lights – Convex mirror.
Head lamps of a car – Concave mirror