- #1
indiansfan4life
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Can anyone help me out with physics problems? I don't know what to do (WUL)
analysis:
10. the picture that we see in a mirror is called the
my answer=image
11. the actual object that makes a picture that we see on a mirror is called the
my answer=specular
-problems- show your work
15. What is the wavelength of a wave with a frequency of 100.4 MHz?
16. A substance allows light to travel through it with a velocity of 2.45 x10^8 m/s. What is the substances index of refraction?
17. What is the intensity of a light that has a lumnious flux of 750 lumens?
18. What is the illuminance provided by a light with a luminous flux of 1120 lm when it is 2.3 meters away?
19. What would the angle of refraction be if a light ray starts in a diamond and goes into the air it has an angle of incidence of 9 degrees.
20. What is the critical angle of light going from quartz to air?
22. What is the illuminance of a light when it is 4.6 m away from a light with an intensity of 78 candle power?
thanks for any help I don't know what I am doing
analysis:
10. the picture that we see in a mirror is called the
my answer=image
11. the actual object that makes a picture that we see on a mirror is called the
my answer=specular
-problems- show your work
15. What is the wavelength of a wave with a frequency of 100.4 MHz?
16. A substance allows light to travel through it with a velocity of 2.45 x10^8 m/s. What is the substances index of refraction?
17. What is the intensity of a light that has a lumnious flux of 750 lumens?
18. What is the illuminance provided by a light with a luminous flux of 1120 lm when it is 2.3 meters away?
19. What would the angle of refraction be if a light ray starts in a diamond and goes into the air it has an angle of incidence of 9 degrees.
20. What is the critical angle of light going from quartz to air?
22. What is the illuminance of a light when it is 4.6 m away from a light with an intensity of 78 candle power?
thanks for any help I don't know what I am doing
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