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

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Read the assertion and reason carefully and choose the best answer:

1. Assertion (A): Generally, lightning is seen earlier, and thunder is heard later.
Reason (R): Speed of the light is more than the speed of sound.

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
A is false but R is true

2. Assertion (A): The loudness of the sound is directly proportional to the square of its amplitude.
Reason (R): The higher the amplitude, the higher is the displacement of particles and so loudness of the sound will be higher.

A is true but R is false
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

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18. Sound characteristics - Assertion and reasoning

Exercise condition: