How to practice topic:vector-calculus

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–8 of 8. Imported answers require independent review unless marked reviewed.

Topic practice 8 questionsPage 1 of 1

Question 14

Open question
PHMCQ1 markNeeds review
For a scalar field

and a vector field

,

is equivalent to the expression
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 22

Open question
PHMCQ1 markNeeds review
Sketch of a two-dimensional vector field

is shown below. Here, length and arrow head of the arrows denote magnitude and direction of the vector field, respectively. Which of the following statements is correct for

?
Diagram for Physics question 22

Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 27

Open question
PHMSQ1 markNeeds review
For which of the following functions does the Laplacian vanish?
Your answerSelect all correct options. You can choose more than one.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 36

Open question
PHMCQ2 marksNeeds review
The function

of complex variable

given below,

has singular points at

Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 21

Open question
PHMCQ1 markNeeds review
Consider the function

of a complex variable

. The residues of the function at

and

, respectively, are
Your answerChoose one option.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 50

Open question
PHMSQ2 marksNeeds review
In coordinates

, a contravariant second rank tensor

has non-zero diagonal components

and

, with all other components vanishing, and

being real constants. Here,

is time and

is space coordinate. Consider a Lorentz transformation

to another frame that moves with relative speed

in the

direction, so that

. If

and

are the diagonal components of

, then setting the speed of light

, and with

, which of the following option(s) is/are correct?
Your answerSelect all correct options. You can choose more than one.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 55

Open question
PHMSQ2 marksNeeds review
Consider the integral

where

is a complex variable and

are positive real numbers. The integral is taken over a unit circle with center at the origin. Which of the following option(s) is/are correct?
Your answerSelect all correct options. You can choose more than one.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 61

Open question
PHNAT2 marksNeeds review
Consider the set

. An orthonormal basis in

is formed from these three terms, where the normalization of a function

is defined via

. If the orthonormal basis set is

, then the value of

(in integer) is ______

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer