what is the wave length in avaccum of microwave of a frequency of 15000Hz
Answers
Answered by
0
Answer:
2×10⁴
frequency= speed of light/wave length
Answered by
2
Answer- The above question is from the chapter 'Structure of Atom'.
Some basic information:
1. Wavelength (λ) - It is the distance between two consecutive crests or troughs.
2. Frequency (ν) - It is the number of waves passing through a point in one second.
3. Velocity (v) - It is the distance covered by a wave per second.
Velocity of light in vacuum (c) = 3 × 10⁸ m/s
v = λ ν
For electromagnetic radiations,
c = λ ν
Given question: What is the wave length in avaccum of microwave of a frequency of 15000 Hz?
Answer: We know that c = λ ν.
c = 3 × 10⁸ m/s
ν = 15 × 10³ Hz
λ = ?
Using the formula, c = λ ν
3 × 10⁸ = λ × 15 × 10³
λ = 3 × 10⁸ ÷ 15 × 10³
λ = 0.2 × 10⁵ m
λ = 2 × 10⁴ m
∴ Wavelength of a micro wave of a frequency of 15000 Hz in a vacuum is 2 × 10⁴ m.
Similar questions