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Science Assertion & Reason

Sound. · Tamil Nadu Board STD 8 (Tamil - English Medium). 6 questions.

Questions

Assertion & Reason

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6 questions · timed · auto-graded

MCQ 11 Mark
Assertion: Women have shriller sound than men.
Reason: Men produced higher frequency sound than women.
  • A
    Both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    Both assertion and reason are true but reason is not the correct explanation of assertion.
  • ✓
    Assertion is true but reason is false.
  • D
    Assertion is false but reason is true.
Answer
Correct option: C.
Assertion is true but reason is false.
Assertion is true but reason is false
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MCQ 21 Mark
Assertion: Trees should be planted along the road to control noise pollution.
Reason: Trees act as noise buffers.
  • ✓
    Both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    Both assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    Assertion is true but reason is false.
  • D
    Assertion is false but reason is true.
Answer
Correct option: A.
Both assertion and reason are true and reason is the correct explanation of assertion.
Both assertion and reason are true and reason is the correct explanation of assertion.
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MCQ 31 Mark
AssertIon: We cannot hear the sound produced by a vibrating pendulum.
Reason: The frequency of the pendulum is very less.
  • ✓
    Both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    Both assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    Assertion is true but reason is false.
  • D
    Assertion is false but reason is true.
Answer
Correct option: A.
Both assertion and reason are true and reason is the correct explanation of assertion.
Both assertion and reason are true and reason is the correct explanation of assertion.
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MCQ 41 Mark
Assertion: Sound waves do not travel through vacuum.
Reason: The speed of sound Is too small when compared to speed of light.
  • A
    Both assertion and reason are true and reason is the correct explanation of assertion.
  • ✓
    Both assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    Assertion is true but reason is false.
  • D
    Assertion is false but reason is true.
Answer
Correct option: B.
Both assertion and reason are true but reason is not the correct explanation of assertion.
Both assertion and reason are true but reason is not the correct explanation of assertlon.
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MCQ 51 Mark
Consider the statement given below and choose the correct option.
Assertion: Two persons on the surface of the moon cannot talk to each other.
Reason: There is no atmosphere on the moon.
  • A
    Both assertion and reason are true and the reason is the correct explanation of assertion.
  • B
    Assertion is true but reason is false.
  • C
    Assertion is false but reason is true.
  • D
    Both Assertion and reason are false.
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MCQ 61 Mark
Consider the statement given below and choose the correct option.
Assertion: When lightning strikes, the sound is heard a little after the flash is seen.
Reason: The velocity of light is greater than that of the sound.
  • A
    Both assertion and reason are true and the reason is the correct explanation of assertion.
  • B
    Assertion is true but reason is false
  • C
    Assertion is false but reason is true.
  • D
    Both Assertion and reason are false.
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Assertion & Reason - Science STD 8 Questions - Vidyadip