Author Question: Why can a 25. watt fluorescent lamp produce as much illumination as a 100. watt incandescent lamp? ... (Read 2880 times)

K@ · **on:** Jul 27, 2018

Why can a 25. watt fluorescent lamp produce as much illumination as a 100. watt incandescent lamp?

What will be an ideal response?

Question 2

When the Sun runs out of nuclear fuel and expands to become a red giant,

A) the Earth's oceans will freeze solid
B) the Earth will be ejected from the solar system
C) the Earth will be destroyed
D) the Earth will experience a runaway greenhouse effect followed by the total loss of its atmosphere

rekilledagain · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

The incandescent lamp produces heat out of the majority of the input energy and only a minority fraction becomes light. The fluorescent lamp produces more light, less heat.

Answer to Question 2

D