Five Thin Lenses,each of Focal Length F,are Placed in Contact

question 68

Multiple Choice

Five thin lenses,each of focal length f,are placed in contact.What is the resulting focal length of the combination?

• A) f
• B) 5f
• C) f/5
• D) 5/f
• E) ​5f/6

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Definitions:

Ethnic Conflict

Disputes and hostilities between ethnic groups, often rooted in competition for resources, political power, and cultural dominance.

Gender Conflict

A type of social conflict arising from inequalities between genders, often involving struggles for dominance, power, and respect in a society.

Cultural Conflict

A struggle that arises from differing values, practices, traditions, or beliefs between groups of people from different cultures.

Nobel Peace Prize

An international award given annually to individuals or groups for outstanding contributions to the promotion of peace and resolution of conflicts.