how many hertz are in a light with a frequency of 2,450 mhz? give your answer in proper scientific notation…

Answer:

$2.45\times 10^{9}$

Explanation:

Step1: Recall the conversion factor

$1\ MHz = 10^{6}\ Hz$

Step2: Convert MHz to Hz

$2450\ MHz=2450\times10^{6}\ Hz$

Step3: Rewrite in scientific - notation

$2450 = 2.45\times10^{3}$, so $2450\times10^{6}\ Hz=2.45\times10^{3}\times10^{6}\ Hz$

Step4: Use exponent rule

$a^{m}\times a^{n}=a^{m + n}$, so $2.45\times10^{3}\times10^{6}\ Hz=2.45\times10^{3 + 6}\ Hz=2.45\times10^{9}\ Hz$