Infared = used by police
gamma = short wavelength
radio = largest wavelength
visible = only ones we can see
Answer:
1 my brother say that
Explanation:
i know my brother said it
Answer:
150000000000 m
0.0000005 seconds
33.33 ns
Explanation:
Speed of electromagnetic waves through vacuum =
Echo time = 1000 seconds
Echo time is the time taken to reach the object and come back to the observer
Distance = Speed×Time
Venus is 150000000000 m away from Earth
Time = Distance / Speed
Echo time will be twice the time
The echo time will be 0.0000005 seconds
Difference in time = Difference in distance / Speed
The accuracy by which I will be able to measure the echo time is 33.33 ns
Question 1: C Question 2: B, Hope this Helps!