Option ( iv ) is the correct answer.
A vector quantity the physical quantity that has both direction as well as magnitude.
iv. All of these
Because the definition of vector quantity is the physical quantity which has both magnitude and direction.
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Answer:
800 calories
Explanation:
Its a solar cell. Photo voltaic Cell is also known as a solar cell.
All are correct except the age of earth. The age of Earth is approximately 4.543 Billion Years.
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