CUET Preparation Today
X-rays of wavelength, $\lambda=1 Å$ have frequency: |
$3 \times 10^{14}$ Hz $1 \times 10^{15}$ Hz $3 \times 10^{16}$ Hz $3 \times 10^{18}$ Hz |
$3 \times 10^{18}$ Hz |
The correct answer is Option (4) → $3 \times 10^{18}$ Hz According to De-Broglie, $⇒v=\frac{c}{λ}=\frac{3×10^8}{1×10^{-10}}=3×10^{18}Hz$ |
