The reflector on top of solar cooker is adjustable because of:

revolution of Earth about Sun.

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rotation of Earth about Sun.

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atmospheric profile of gases.

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density variation in atmosphere.

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Solution

The correct option is C rotation of Earth about Sun.
Rotation of Earth about the Sun causes the position of Sun to change during the day. Hence, the mirror on the top of the solar cooker needs adjusting during the day to focus the rays in a small area.

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The reflector on top of solar cooker is adjustable because of:

The correct option is C rotation of Earth about Sun.Rotation of Earth about the Sun causes the position of Sun to change during the day. Hence, the mirror on the top of the solar cooker needs adjusting during the day to focus the rays in a small area.

The correct option is C rotation of Earth about Sun.
Rotation of Earth about the Sun causes the position of Sun to change during the day. Hence, the mirror on the top of the solar cooker needs adjusting during the day to focus the rays in a small area.