When a high-power laser is used in the earths atmosphere, Physics

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When a high-power laser is used in the earths atmosphere

When a high-power laser is used in the Earth's atmosphere, the electric field associated with the laser beam can ionize the air, turning it into a conducting plasma that reflects the laser light. In dry air at 0°C and 1 atm, electric breakdown occurs for fields with amplitudes above about 3.00 MV/m.

(a) What laser beam intensity will produce such a field?

W/m2

(b) At this maximum intensity, what power can be delivered in a cylindrical beam of diameter 6.28 mm?

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Physics: When a high-power laser is used in the earths atmosphere

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Physics: When a high-power laser is used in the earths atmosphere

Reference No:- TGS0642335

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