Solved

The Rate of Energy Flow Per Unit Area of an Electromagnetic

Question 59

Multiple Choice

The rate of energy flow per unit area of an electromagnetic wave has an average value of 0.6950.695 W/m2\mathrm { W } / \mathrm { m } ^ { 2 } . The wave is incident at right angles upon a rectangular area measuring 1.5 m1.5 \mathrm {~m} by 2.0 m2.0 \mathrm {~m} .
How much total energy falls upon this rectangle each minute? (ε0=8.85×1012C2/Nm2,μ0=4\left( \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } 2 / \mathrm { N } \cdot \mathrm { m } ^ { 2 } , \mu _ { 0 } = 4 \right. π×107 Tm/A,c=3.0×108 m/s\pi \times 10 ^ { - 7 } \mathrm {~T} \cdot \mathrm { m } / \mathrm { A } , c = 3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } )


A) 250 J250 \mathrm {~J}
B) 160 J160 \mathrm {~J}
C) 130 J130 \mathrm {~J}
D) 220 J220 \mathrm {~J}
E) 190 J190 \mathrm {~J}

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Unlock this Answer For Free Now!

View this answer and more for free by performing one of the following actions

qr-code

Scan the QR code to install the App and get 2 free unlocks

upload documents

Unlock quizzes for free by uploading documents