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Question 2Asked in DSSSB TGT Computer Science (Technical), 1 Aug 2021, Shift 3

If V = 2yz i + 4xy k (i, k are unit vectors), then what is the value of ∇·(∇ × V)?

  1. A−2
  2. B2
  3. C0
  4. D1
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Correct answer: (C) 0

Explanation

The divergence of a curl is always zero, ∇·(∇ × V) = 0, for any vector field with continuous second derivatives.

From DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 3

This is question 2 of DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 3. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.