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"A rule of thumb for estimating the distance in kilometers between an observer and a lightning stroke is to divide the number of seconds in the interval between the flash and the sound by 3. Is this rule correct? 1. No; the speed of sound varies rapidly with altitude. 2. Yes; the speed of light is much greater than the speed of sound. 3. Yes; the sound waves are longitudinal waves. 4. No; the speed of light must be considered in this problem".

Respuesta :

Option 1 is correct option .

Explanation:

The velocity of sound depends upon temperature . The temperature is different at different altitudes .

The velocity of sound has no effect of pressure . Thus at  different altitudes , if pressure is different , it makes no difference .

Therefore the speed of sound varies rapidly with altitude , due to variation of temperature .

It also depends on the nature of medium . which also varies with altitude .

Moreover we cannot get distance by dividing time interval with 3 .

The correct statement about the rule is that:

1. No; the speed of sound varies rapidly with altitude.

Velocity of sound:

The velocity of sound depends upon temperature . The temperature is different at different altitudes. The velocity of sound has no effect of pressure . Thus at  different altitudes , if pressure is different , it makes no difference. Therefore the speed of sound varies rapidly with altitude , due to variation of temperature. It also depends on the nature of medium which also varies with altitude. Moreover we cannot get distance by dividing time interval with 3.

Thus correct option is 1.

Find more information about Velocity of sound here:

brainly.com/question/14320580

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