A Converging Lens of Focal Length 20 Cm Is Placed

question 8

Multiple Choice

A converging lens of focal length 20 cm is placed in contact with a diverging lens of focal length 30 cm.The focal length of this combination is:

• A)+60 cm
• B)+25 cm
• C)+12 cm
• D)+10 cm
• E)-10 cm

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Definitions:

Dramatically

In a manner that is strikingly impressive or sudden, often involving significant change or effect.

Organizational

Pertaining to the structure and function of organizations, including their strategies, cultures, and processes that influence performance and operations.

National

Related to or characteristic of a nation; pertaining to the whole country.

Deeply Embedded

Firmly ingrained or thoroughly incorporated into a context, system, or culture, making it difficult to isolate or remove.