Question

A gamma ray has a frequency of 1 x 10^20 Hz and has a speed of c. What is the
wavelength?

Answer 1

λ = 3.0 × 10⁻¹² m

Step-by-step explanation:

Speed of Light = Wavelength × frequency

c = λν

Step 1: Define

c = 3.0 × 10⁸ m/s

λ = unknown

ν = 1 × 10²⁰ Hz

Step 2: Substitute and Evaluate for λ

3.0 × 10⁸ m/s = λ · 1 × 10²⁰ Hz

λ = 3.0 × 10⁸ m/s ÷ 1 × 10²⁰ Hz

λ = 3.0 × 10⁻¹² m