Question

Write the relation of frequency and time period and if a sound wave in air has
frequency 1,700 Hz, what is its wavelength in angstrom(Å)? (The speed of sound in
air is 34000 cm/s)​

Answer 1

Answer:

frequency is inversely proportional to Time Period

Answer 2

Answer:

$f \propto \frac{1}{T}$

$\lambda = 2 \times 10^9\ A^0$

Explanation:

Speed = 340 m/s

f = 1700 Hz

$c = f\lambda$

=> 340 = (1700) λ

=> λ = 340/1700

=> λ = 0.2 m

=> λ = 2 × 10⁻¹ m

=> λ = 2 × 10⁻¹ × 10¹⁰ $A^0$

=> λ = 2 × 10⁹ $A^0$

Hope it helps

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