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A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Given permittivity of space ∈0 = 9 × 10-12 SI units, Speed of light c = 3 × 108 m/s]:-
- a)1 kV/m
- b)2 kV/m
- c)1.4 kV/m
- d)0.7 kV/m
Correct answer is option 'C'. Can you explain this answer?
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A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude...
Intensity of EM wave is given by
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A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude...
The magnitude of the maximum electric field in an electromagnetic wave can be calculated using the formula:
E = sqrt(2P / (c * ε * A))
Where:
E = magnitude of the maximum electric field
P = power of the laser beam (in Watts)
c = speed of light in vacuum (approximately 3 x 10^8 m/s)
ε = permittivity of space (approximately 8.854 x 10^-12 F/m)
A = cross-sectional area of the laser beam (in m^2)
Plugging in the given values:
P = 27 mW = 27 x 10^-3 W
A = 10 mm^2 = 10 x 10^-6 m^2
ε = 8.854 x 10^-12 F/m
E = sqrt(2 * (27 x 10^-3) / (3 x 10^8 * 8.854 x 10^-12 * 10 x 10^-6))
E = sqrt(54 x 10^-3 / (26.562 x 10^-12))
E = sqrt(2.0354 x 10^9)
E ≈ 45,136.3 V/m
Therefore, the magnitude of the maximum electric field in this electromagnetic wave is approximately 45,136.3 V/m.
E = sqrt(2P / (c * ε * A))
Where:
E = magnitude of the maximum electric field
P = power of the laser beam (in Watts)
c = speed of light in vacuum (approximately 3 x 10^8 m/s)
ε = permittivity of space (approximately 8.854 x 10^-12 F/m)
A = cross-sectional area of the laser beam (in m^2)
Plugging in the given values:
P = 27 mW = 27 x 10^-3 W
A = 10 mm^2 = 10 x 10^-6 m^2
ε = 8.854 x 10^-12 F/m
E = sqrt(2 * (27 x 10^-3) / (3 x 10^8 * 8.854 x 10^-12 * 10 x 10^-6))
E = sqrt(54 x 10^-3 / (26.562 x 10^-12))
E = sqrt(2.0354 x 10^9)
E ≈ 45,136.3 V/m
Therefore, the magnitude of the maximum electric field in this electromagnetic wave is approximately 45,136.3 V/m.
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A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Given permittivity of space∈0 = 9 × 10-12 SI units, Speed of lightc = 3 × 108 m/s]:-a)1 kV/mb)2 kV/mc)1.4 kV/md)0.7 kV/mCorrect answer is option 'C'. Can you explain this answer?
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A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Given permittivity of space∈0 = 9 × 10-12 SI units, Speed of lightc = 3 × 108 m/s]:-a)1 kV/mb)2 kV/mc)1.4 kV/md)0.7 kV/mCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Given permittivity of space∈0 = 9 × 10-12 SI units, Speed of lightc = 3 × 108 m/s]:-a)1 kV/mb)2 kV/mc)1.4 kV/md)0.7 kV/mCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Given permittivity of space∈0 = 9 × 10-12 SI units, Speed of lightc = 3 × 108 m/s]:-a)1 kV/mb)2 kV/mc)1.4 kV/md)0.7 kV/mCorrect answer is option 'C'. Can you explain this answer?.
A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Given permittivity of space∈0 = 9 × 10-12 SI units, Speed of lightc = 3 × 108 m/s]:-a)1 kV/mb)2 kV/mc)1.4 kV/md)0.7 kV/mCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Given permittivity of space∈0 = 9 × 10-12 SI units, Speed of lightc = 3 × 108 m/s]:-a)1 kV/mb)2 kV/mc)1.4 kV/md)0.7 kV/mCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Given permittivity of space∈0 = 9 × 10-12 SI units, Speed of lightc = 3 × 108 m/s]:-a)1 kV/mb)2 kV/mc)1.4 kV/md)0.7 kV/mCorrect answer is option 'C'. Can you explain this answer?.
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