A krypton laser produces a cylindrical red laser beam 2.0, Ask an Expert

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Q. A krypton laser produces a cylindrical red laser beam 2.0 in diam with 2.0 of power. What is the light intensity on a wall 2.5 away from laser?

Q. Determine the highest speed attained by the 1.3 Mg rocket sled if the rockets offer the thrust shown in the graph. At first, the sled is at rest. Avoid friction and the loss of mass because of fuel consumption.

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Category:- Physics
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