Saturday

September 20, 2014

September 20, 2014

Posted by **Jon** on Tuesday, April 8, 2008 at 3:46am.

1/f=1/d1+1/do

d1=fdo/do-f

(10)(20)/20-10

d1=20

m=-(20)(4)/20

-4 or 4 away

answer: real, inverted

2)Light passes from air into water at 45.0 d/C to the normal. If the index of refraction of water is 1.33, find the angle of refraction.

sin-1((1.00/1.33)sin45.0

32.1 d/C

- Physics -
**drwls**, Tuesday, April 8, 2008 at 6:31amThe numbers are correct, but I am not familiar with your "d/C" notation. I hope it has nothing to do with degrees C, which is a unit of temperature, not angle. Angle-measuring units are just called "degrees".

**Answer this Question**

**Related Questions**

CALCULUS - If you could give an explenation with the answers, that'd be ...

Science Important - 1. A toy of height 18.4 cm is balanced in front of a ...

science - An object 3 cm is high is placed 24 cm away from a convex lens of ...

Physics - A convex lens of focal length 2.5 cm is placed 4 cm from a small ...

physics - A box is placed 50 cm away from a double convex lens. The image is on...

Physics: Lenses - 1) A convex lens with a focal lenght of 4.0cm is placed 20.0cm...

calculus problem - the thin lens equation in physics is 1/s+1/S=1/f where s is ...

physics - Where should the birthday candle of height 5 cm be placed in front of...

SCIENCE: GR.10 OPTICS CONVEX MIRRORS - A convex security mirror has a focal ...

physics - A 5.0-cm real object is placed at a distance of 30.0 cm from a concave...