Question

1
select the correct answer.

the speed of light passing through water is $2.25 \times 10^8$ meters/second. the speed of light passing through a diamond is $1.23 \times 10^8$ meters/second.
what is the difference of the two speeds?
a. $1.02 \times 10^7$ meters/second
b. $1.02 \times 10^8$ meters/second
c. $3.48 \times 10^7$ meters/second
d. $3.48 \times 10^8$ meters/second

Explanation:

Step1: Identify given values

Speed in water: $2.25 \times 10^8$ m/s; Speed in diamond: $1.23 \times 10^8$ m/s

Step2: Subtract the two speeds

$$(2.25 - 1.23) \times 10^8$$

Step3: Calculate the difference

$$1.02 \times 10^8$$

Answer:

B. $1.02 \times 10^8$ meters/second