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An object of height 17.7 cm is placed 7.8 cm from a concave lens. What is the angular size of this object? a. -0.44 rad O b. -2.27 rad c. 17.7 rad d. 25.50 rad

An object of height 17.7 cm is placed 7.8 cm from a concave lens. What is the angular size of this object? a. -0.44 rad O b. -2.27 rad c. 17.7 rad d. 25.50 rad

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An object of height 17.7 cm is placed 7.8 cm from a concave lens. What is the angular size of this object? a. -0.44 rad b. -2.27 rad c. 17.7 rad d. 25.50 rad e. -17.7 rad O f. 2.27 rad O g. 0.44 rad O h. 4.54 rad
Transcribed Image Text:An object of height 17.7 cm is placed 7.8 cm from a concave lens. What is the angular size of this object? a. -0.44 rad b. -2.27 rad c. 17.7 rad d. 25.50 rad e. -17.7 rad O f. 2.27 rad O g. 0.44 rad O h. 4.54 rad
A violet ray of light leaves a medium with refractive index of 4.86 at an angle of 1.33 radians to the normal and enters a second medium with refractive index of 25.11. At what angle to the normal will this ray travel in the second medium? a. 0.3782 radians b. 0.0945 radians c. 0.0189 radians d. 0.6921 radians e. 0.0021 radians O f. 0.1891 radians
Transcribed Image Text:A violet ray of light leaves a medium with refractive index of 4.86 at an angle of 1.33 radians to the normal and enters a second medium with refractive index of 25.11. At what angle to the normal will this ray travel in the second medium? a. 0.3782 radians b. 0.0945 radians c. 0.0189 radians d. 0.6921 radians e. 0.0021 radians O f. 0.1891 radians
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