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A pendulum makes 30 complete oscillations in 15 seconds. If another pendulum Y makes 19 complete oscillations in 9 seconds, then select the incorrect statement(s).
(i) The string of pendulum Y is longer than that of pendulum X.
(ii) The angle of swing of release of pendulum changes its time period.
(iii) Pendulum Y has a shorter period than pendulum X.
(iv) The higher mass of the bob of the pendulum corresponds to its lower time period.
  • a)
    The string of pendulum Y is longer than that of pendulum X.
  • b)
    The angle of swing of release of pendulum changes its time period.
  • c)
    Pendulum Y has a shorter period than pendulum X.
  • d)
    The higher mass of the bob of pendulum corresponds to its lower time period.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A pendulum makes 30 complete oscillations in 15 seconds. If another pe...
Time period of pendulum X = 15/30 = 0.5 sec. Time period of pendulum Y = 9/19 = 0.47 sec.
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Community Answer
A pendulum makes 30 complete oscillations in 15 seconds. If another pe...
Explanation:
Incorrect Statement:

a) The string of pendulum Y is longer than that of pendulum X.
- This statement is incorrect because the length of the string of a pendulum is directly proportional to its time period. A longer string would result in a longer time period, not a shorter one as mentioned in the statement.
Correct Statements:
b) The angle of swing of release of pendulum changes its time period.
- The angle of release does affect the time period of a pendulum. A larger angle would result in a longer time period, while a smaller angle would result in a shorter time period.
c) Pendulum Y has a shorter period than pendulum X.
- This statement is correct based on the information given in the question. Pendulum Y completes fewer oscillations in a shorter time period compared to pendulum X, indicating that pendulum Y has a shorter period.
d) The higher mass of the bob of the pendulum corresponds to its lower time period.
- This statement is correct because the mass of the bob does affect the time period of a pendulum. A higher mass results in a lower time period, while a lower mass results in a higher time period.
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A pendulum makes 30 complete oscillations in 15 seconds. If another pendulum Y makes 19 complete oscillations in 9 seconds, then select the incorrect statement(s).(i) The string of pendulum Y is longer than that of pendulum X.(ii) The angle of swing of release of pendulum changes its time period.(iii) Pendulum Y has a shorter period than pendulum X.(iv) The higher mass of the bob of the pendulum corresponds to its lower time period.a)The string of pendulum Y is longer than that of pendulum X.b)The angle of swing of release of pendulum changes its time period.c)Pendulum Y has a shorter period than pendulum X.d)The higher mass of the bob of pendulum corresponds to its lower time period.Correct answer is option 'A'. Can you explain this answer?
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A pendulum makes 30 complete oscillations in 15 seconds. If another pendulum Y makes 19 complete oscillations in 9 seconds, then select the incorrect statement(s).(i) The string of pendulum Y is longer than that of pendulum X.(ii) The angle of swing of release of pendulum changes its time period.(iii) Pendulum Y has a shorter period than pendulum X.(iv) The higher mass of the bob of the pendulum corresponds to its lower time period.a)The string of pendulum Y is longer than that of pendulum X.b)The angle of swing of release of pendulum changes its time period.c)Pendulum Y has a shorter period than pendulum X.d)The higher mass of the bob of pendulum corresponds to its lower time period.Correct answer is option 'A'. Can you explain this answer? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about A pendulum makes 30 complete oscillations in 15 seconds. If another pendulum Y makes 19 complete oscillations in 9 seconds, then select the incorrect statement(s).(i) The string of pendulum Y is longer than that of pendulum X.(ii) The angle of swing of release of pendulum changes its time period.(iii) Pendulum Y has a shorter period than pendulum X.(iv) The higher mass of the bob of the pendulum corresponds to its lower time period.a)The string of pendulum Y is longer than that of pendulum X.b)The angle of swing of release of pendulum changes its time period.c)Pendulum Y has a shorter period than pendulum X.d)The higher mass of the bob of pendulum corresponds to its lower time period.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A pendulum makes 30 complete oscillations in 15 seconds. If another pendulum Y makes 19 complete oscillations in 9 seconds, then select the incorrect statement(s).(i) The string of pendulum Y is longer than that of pendulum X.(ii) The angle of swing of release of pendulum changes its time period.(iii) Pendulum Y has a shorter period than pendulum X.(iv) The higher mass of the bob of the pendulum corresponds to its lower time period.a)The string of pendulum Y is longer than that of pendulum X.b)The angle of swing of release of pendulum changes its time period.c)Pendulum Y has a shorter period than pendulum X.d)The higher mass of the bob of pendulum corresponds to its lower time period.Correct answer is option 'A'. Can you explain this answer?.
Solutions for A pendulum makes 30 complete oscillations in 15 seconds. If another pendulum Y makes 19 complete oscillations in 9 seconds, then select the incorrect statement(s).(i) The string of pendulum Y is longer than that of pendulum X.(ii) The angle of swing of release of pendulum changes its time period.(iii) Pendulum Y has a shorter period than pendulum X.(iv) The higher mass of the bob of the pendulum corresponds to its lower time period.a)The string of pendulum Y is longer than that of pendulum X.b)The angle of swing of release of pendulum changes its time period.c)Pendulum Y has a shorter period than pendulum X.d)The higher mass of the bob of pendulum corresponds to its lower time period.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 8. Download more important topics, notes, lectures and mock test series for Class 8 Exam by signing up for free.
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