Multiple Choice
The rate of energy flow per unit area of an electromagnetic wave has an average value of 0.695 W/m2.The wave is incident at right angles upon a rectangular area measuring 1.5 m by 2.0 m.How much total energy falls upon this rectangle each minute? (ε0 = 8.85 × 10-12 C2/N ∙ m2,μ0 = 4π × 10-7 T ∙ m/A,c = 3.0 × 108 m/s)
A) 130 J
B) 160 J
C) 190 J
D) 220 J
E) 250 J
Correct Answer:

Verified
Correct Answer:
Verified
Q53: Which one of the following lists gives
Q54: A 7.55 × <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6214/.jpg" alt="A 7.55
Q55: How far does light travel in 1.0
Q56: How much time does it take a
Q57: The following items are positioned in sequence:
Q58: An 8.00-mW laser beam emits a cylindrical
Q59: For an electromagnetic wave in free space
Q61: A certain electromagnetic field traveling in vacuum
Q62: Which one of the following lists gives
Q63: In an electromagnetic wave in free space,the