energy camied ih Waves ol eledtric and magheuc heds tiat cohunually reg points |

Question

energy camied ih Waves ol eledtric and magheuc heds tiat cohunually reg points | Previous Answers ich of the following are true concerning electromagnetic waves? Select all that apply 2 Radio waves travel the same speed as gamma rays, but their wavelengths are long Electromagnetic waves with higher frequencies have shorter wavelengths. As electromagnetic waves increase their speed, they increase their frequency. Radio waves travel slower than gamma, and their wavelengths are longer. X-Rays have shorter wavelengths than microwaves. 1 points The maximum background radiation that the average person receives in one year is about 3 m After 30 years, a person has received about the same amount of background radiation A person wouid have to get 30 chest x-rays to get the same smount of radiation that the A 50 year oid (who has only received background radiation) will have a lifetime radiation e person woud have to be scanned at an airport security about 12,000 times to get the sa recelved for that

Explanation / Answer

1) True

Becasue, E_gamma > E_radio

and we know, Energy of a photon, E = h*c/lamda

so, lamda_gamma < lamda_radio

2) True

c = lamda*f

for every electromagnetic wave c is same.

so, lamda is inversly proportional to f

3) False

Because, all the electromagnetic waves travel with the same speed.

4) False

Because, all the electromagnetic waves travel with the same speed.

5) True

Becasue, E_xray > E_micro

and we know, Energy of a photon, E = h*c/lamda

so, lamda_xray < lamda_micro

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