PS section | Student Doctor Network

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akalin24

Member

10+ Year Member

15+ Year Member

#1

Did anyone get 10cm for a focal length question on the PS section???

kiahs

Senior Member

7+ Year Member

15+ Year Member

#2

i though it was five 1/f = 2/r so shouldn't r= f/2? I contemplated this for like three minutes

ASDIC

The 9th Flotilla

15+ Year Member

#3

i used focal length = 0.5 x radius of curvature....i think i got 10

akalin24

Member

10+ Year Member

15+ Year Member

#4

I used the lens makers equation 1/f=1/o+1/i

I think I blew that one!

UCLAstudent

I'm a luck dragon!

10+ Year Member

15+ Year Member

#5

I got 5 cm.

1/f = 2/R
f = R/2 = 10/2 = 5 cm

mrsmotivation

Member

7+ Year Member

15+ Year Member

#6

5 cm f=R/2

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