Question

What type of mirror is used in the following.
This question has multiple correct options.
A. Periscope
B. Floodlights
C. Shaving mirror
D. Kaleidoscope
E. Street lights
F. Head lamps of a car.

Answer 1

Hint: In this question we should have proper knowledge of mirrors and its type. Use of different types of mirror can help to find which mirror is used in given options.

Complete step-by-step answer:
What is a mirror?
A surface reflecting 100% of incident radiation is a mirror..
Types of mirror.
(A.) Plane Minor: As the name suggests it is a plane mirror. The shape and size of the image and the object are the same. The image is a lateral impression of the object.
(B) Concave mirror: It is a spherical minor, which has a polished surface on the inside of the curve. Cave being the operative word explaining the position of reflecting surface.
(c) Convex minor: It is also a spherical mirror with the reflective surface on the bulging part of the sphere.

What type of mirror is used?
(A) Periscope: A periscope (simple) uses two plane mirrors aligned at 45°.
The complex versions used in submarines have an assortment of mirrors and lenses.
(B) Flood lights: flood light uses a concave mirror to focus or converge the light into a single powerful beam. It is used in stadiums for night matches.
(c) Shaving mirror: Shaving mirror uses concave mirror to help magnify the face when held in close proximity to the face.
(d) Kaleidoscope: Kaleidoscope uses plane mirrors aligned side by side each other to create unending colorful patterns.
(e) Street: lights: Street lights use a convex lens to diverge the beam of light to cover a larger surface area.
(f) Head lamps of a car: Head lamps of a car use a concave lens where the light is placed at the focus to converge... the beams into a strong light which shines the path ahead of the car.

Note:
(a) Concave lenses are used where converging is needed.
(b) Convex lenses are used where diverging is needed.