$\"\"$

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Intensity vector of the sunrays is $\"\"$ .

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Area vector of the solar panel is $\"\"$ .

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(a)

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Find $\"\"$ and $\"\"$

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Magnitude of the vector $\"\"$ is $\"\"$ .

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$\"\"$

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$\"\"$ watt/sqcm.

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$\"\"$ reprsents Magnitude of the intensity in watt/sq-cm.

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$\"\"$

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$\"\"$

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$\"\"$ sqcm.

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$\"\"$ reprsents Magnitude of the area in sq-cm.

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$\"\"$

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(b)

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Find $\"\"$ .

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$\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ watts.

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$\"\"$ represents the total number of watts collected by solar panel.

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$\"\"$

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(c)

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Solar panel should collect maximum number of watts.

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Angle between $\"\"$ and $\"\"$ should make $\"\"$ with the solar panel.

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Therefore, the vectors $\"\"$ and $\"\"$ should be parallel with the solar panels facing the sun. \ \

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$\"\"$

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(a

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$\"\"$ reprsents Magnitude of the intensity in watt/sq-cm.

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$\"\"$ reprsents Magnitude of the area in sq-cm.

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(b) $\"\"$ watts.