You Wish to Read by the Light of a Lamp

question 73

Multiple Choice

You wish to read by the light of a lamp with a single lightbulb at your desk. In order to get the same brightness on the page from a 25 W bulb as you can from 100 W bulb, how much closer do you need to bring the lamp to your book? Assume that the light bulbs are equally efficient.

• A) 1/2 the distance
• B) 1/8 the distance
• C) 1/4 the distance
• D) 1/16 the distance

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Definitions:

Acute Laryngotracheobronchitis

A serious inflammation of the larynx, trachea, and bronchi primarily affecting children and leading to airway obstruction.

Respiratory Efforts

The work the body exerts to breathe, including the use of muscles in the chest and diaphragm to inhale and exhale air.

Mother's Presence

The physical or emotional availability and support of a mother, which can significantly impact a child's development and well-being.

Nasopharyngitis

Inflammation of the nasal passages and pharynx, commonly known as the common cold.