Question

All Qustions
The time interval between a lightening flash and its thunder is 5 sec. If
the speed of sound is 330 meter per sec. find the distance of the
lightening flash from the observer
O 1660 m
0 1650 m
O 16500 m
016600 m​

Answer 1

Concept used

>>Here the time,distance and speed relationship is used. The time interval between flash and thunder is given as 5 sec. The speed of the sound(thunder) is given as 330 m/sec. By applying formula we can find hen distance of the lighting flash from the observer.

Formula used

$\bigstar \bold \pink{Speed =\frac{Distance}{time} }$

Solution

We know that

$\sf{ \to \red{ Speed =\frac{Distance}{time}} } \\ \\\sf{\implies330=\frac{Distance}{5} }$

$\sf{ \implies Distance \: travelled = 330 × 5} \\ \\ \sf{ \implies Distance \: travelled = 1650 \: metre.}$

⚘Therefore the distance of the lightening flash from the observer is 1650 metre.

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More To Know !!

$\sf{✎Average \: speed = \frac{Total\:distance}{Time}}$

✎Distance- It is defined as the total movement of an object independent of direction. It's a scalar quantity.

✎Displacement- It is defined as the shortest path travelled by the object. It is direction dependent. It's a vector quantity.

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