Question

Q.1 Which of the following military vehicle will use periscope for safe viewing of the outside objects during war time?
I. Military Van
II. Fighter Jet
III. Battle Tank
IV. Attack Helicopter

Q.2 The diagram below shows a periscope with two non-parallel plane mirrors, what will be the nature of the image as observed by the viewer O?

I. virtual, erect and magnified
II. real, inverted and magnified
III. real, inverted and diminished
IV. virtual, erect and diminished

Answer 1

The answers are given below.

Explanation:

(1) Battle Tank will use periscope for safe viewing of the outside objects during wartime.

(2) The nature of the image as observed by the viewer will be virtual, erect, and diminished.

• In the modern world, a battle tank is used to keep the armors protected from fire and other dangerous attacks.
• It is also known as a universal tank and is the main weapon that plays a significant role in the life of modern armies.
• It is used during wartime to view the outside objects safely and easily without any harm.