Question 1) Chose the correct answer 1) The value of effort in first class levers (if the force arm and resistance arm are 1 m and 2 m respectively, and the resistance force value is 1 N) is equal to ... A) +1 N B) -1 N C) +2 N D) -2N

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Chapter16: Electromagnetic Waves
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Question 1) Chose the correct answer
1) The value of effort in first class levers (if the force arm and resistance arm are 1 m and 2
m respectively, and the resistance force value is 1 N) is equal to ...
A) +1 N
B) -1 N
C) +2 N
D) -2 N
2) A photon absorptiometry which is used for measurements of bone mineral is used a wide
beam to improve the scattering rays
A) Yes
C) No it depends on mono rays
B) No, it does not depend on rays
D) No it depends on narrow beams
Transcribed Image Text:Question 1) Chose the correct answer 1) The value of effort in first class levers (if the force arm and resistance arm are 1 m and 2 m respectively, and the resistance force value is 1 N) is equal to ... A) +1 N B) -1 N C) +2 N D) -2 N 2) A photon absorptiometry which is used for measurements of bone mineral is used a wide beam to improve the scattering rays A) Yes C) No it depends on mono rays B) No, it does not depend on rays D) No it depends on narrow beams
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