Sound characteristics - Assertion and reasoning — task. Science State Board, Class 8.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Analyze the assertion and reason carefully and select the best answer:

1. Assertion (A): Sound cannot travel in vacuum.
Reason (R): Speed of the light is more than the speed of sound.

A is false but R is true
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of A
A is true but R is false

2. Assertion (A): Every musical instrument vibrates to produce a different kind of sound.
Reason (R): The quality of sound is characterized by its pitch and loudness.

Both A and R are true but R is not the correct explanation of A
Both A and R are true and R is the correct explanation of A
A is false but R is true
A is true but R is false

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18. Sound characteristics - Assertion and reasoning

Exercise condition: