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Answer: c
Explanation: Gradient of any function leads to a vector. Similarly curl of that vector gives
another vector, which is always zero for all constants of the vector. A zero value in
vector is always termed as null vector(not simply a zero)
Answer: c
Explanation: Gradient of any function leads to a vector. Similarly curl of that vector gives another vector, which is always zero for all constants of the vector. A zero value in vector is always termed as null vector(not simply a zero).