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Nita heard the sound of lightning after 4 seconds of seeing it. What was the distance of the lightning from her? (The velocity of sound in air is 340 m/s.) - Science and Technology

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प्रश्न

Nita heard the sound of lightning after 4 seconds of seeing it. What was the distance of the lightning from her?

(The velocity of sound in air is 340 m/s.)

योग

उत्तर

Given:

  • Speed of sound in air  (v) = 340 m/s,
  • Time (T) = 4 second

Find: Distance (λ)

Formula: v = λT

Calculations:

According to formula,

340=λ4

λ = 340 × 4

λ = 1360 m

The distance of lightning flash from Nita will be 1360 m.

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अध्याय 12: Study of Sound - Exercise [पृष्ठ १३७]

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बालभारती Science and Technology [English] 9 Standard Maharashtra State Board
अध्याय 12 Study of Sound
Exercise | Q 5. b. | पृष्ठ १३७

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