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JEE Main Physics: Rotational Motion — Chapter Test 1

JEE Main • Physics • Rotational Motion • Chapter Test

EasyFREE

15

Questions

20 min

Duration

15

Marks (1 each)

No

Negative marking

Original practice questions with full solutions by ExamPortal.

Instructions

  • • Read each question carefully and pick the correct answer.
  • • You can mark questions for review and come back to them.
  • • Answers are saved automatically.
  • • The test is submitted automatically when time runs out.

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This test is completely free.

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SYLLABUS & QUESTION BLUEPRINT

Sample Practice Questions

Preview 5 sample questions from this 15-question test. Test your knowledge below or take the full exam in timed CBT mode.

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Question 1 of 15
The moment of inertia of a thin ring of mass M and radius R about its central axis perpendicular to its plane is
A
MR²
B
MR²/2
C
2MR²/5
D
MR²/4
View Correct Answer & Step-by-Step Solution
Correct Option:(A)MR²

Detailed explanation is available inside the official test attempt review.

Question 2 of 15
The moment of inertia of a uniform disc about its central axis perpendicular to its plane is
A
MR²
B
MR²/2
C
2MR²/5
D
MR²/4
View Correct Answer & Step-by-Step Solution
Correct Option:(B)MR²/2

Detailed explanation is available inside the official test attempt review.

Question 3 of 15
The moment of inertia of a solid sphere about a diameter is
A
2MR²/3
B
2MR²/5
C
MR²/2
D
7MR²/5
View Correct Answer & Step-by-Step Solution
Correct Option:(B)2MR²/5

Detailed explanation is available inside the official test attempt review.

Question 4 of 15
The moment of inertia of a thin rod of length L about an axis through its centre perpendicular to it is
A
ML²/3
B
ML²/12
C
ML²/2
D
ML²
View Correct Answer & Step-by-Step Solution
Correct Option:(B)ML²/12

Detailed explanation is available inside the official test attempt review.

Question 5 of 15
The moment of inertia of a thin rod about a perpendicular axis through one end is
A
ML²/12
B
ML²/3
C
ML²/2
D
ML²/4
View Correct Answer & Step-by-Step Solution
Correct Option:(B)ML²/3

Detailed explanation is available inside the official test attempt review.

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Frequently asked questions

How many questions are there in JEE Main Physics: Rotational Motion — Chapter Test 1?

There are 15 questions to answer in 20 min. Each correct answer gives 1 mark, for a total of 15 marks.

Is there negative marking?

No. Wrong answers do not lose marks, so attempt every question.

Is this mock test free?

Yes, it is completely free. Just log in with your email to start.

What does this test cover?

It covers the chapter "Rotational Motion" of JEE Main Physics. All questions are original, with a full solution for each.

Will I see my result and the solutions?

Yes. Right after you submit you get your score, accuracy, rank and percentile, and you can review every question with the correct answer and a step-by-step explanation.

Can I take this test again?

Yes, you can retake it as many times as you like and compare your scores.