What is the frequency of microwaves of wavelength 3 cm? Give your answer to the nearest GHz and without units.

Question

What is the frequency of microwaves of wavelength 3 cm?
Give your answer to the
nearest GHz and without units.

in progress 0
Ngọc Diệp 4 years 2021-08-13T08:41:57+00:00 1 Answers 118 views 0

Answers ( )

  1. vankhanh
    0
    2021-08-13T08:43:35+00:00
    Reply

    Answer:

    10 GHz

    Explanation:

    Applying,

    v = λf……………….. Equation 1

    Where v = speed of microwave, λ = wavelength, f = frequency.

    make f the subject of the equation

    f = v/λ……………. Equation 2

    Note: Microwave is an electromagnetic wave, and all electromagnetic wave have the same speed, which is 3×10⁸ m/s

    From the question,

    Given: λ = 3 cm = 0.03 m

    Constant; v = 3×10⁸ m/s

    Substitute these values into equation 2

    f = 3×10⁸/(0.03)

    f = 10¹⁰ Hz

    f = (10¹⁰/10⁹) GHz

    f = 10 GHz

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )