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# (Solved): Questions Calculate the speed of light in glass using its speed in vacuum and the index of refracti ...

Questions Calculate the speed of light in glass using its speed in vacuum and the index of refraction you determined in this lab. Discuss possible sources of error. Four short questions: Longer focal lengths correspond to optical devices which are a. flatter b. more curved a. stronger b. weaker Nearsighted people a. form images in front of their retinas b. behind their retinas a. need divergent corrective lenses b. need convergent corrective lenses

{(:i=40\deg ),(r=27\deg ),((sin46)/(sin27)=(1,38)/()=(sin24)/(sin17)=1.39------1):}

45-45-96,q^(')=170,r^(')=240

{(:%(1.52-1.53)/(1.52)\times 100=0.654%cmr):}

DATA SHEET Refraction: vertex angle between the entrance and exit interfaces entrance interface:

i=

exit interface:

,i^(')=

r=120

120

r^(')=

n=

n : Your experimental value of

n

(the average of the 2 calculated values)

=

1.53 Your percent error (using 1.52 as the known value of n for this glass)

=

Lenses: PLEASE DO 1 and 2 ONLY. THANK YOU

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