Exam 1

Question 1

Critical Angle

Answer 1

SinΘ=n’/n

Question 2

Angle of deviation/ total deviation

Answer 2

D=Θ-Θ’

Question 3

Magnification (angles)

Answer 3

M=Θi/Θo

Question 4

Magnification (height)

Answer 4

M= hi/ho

Question 5

Magnification (length)

Answer 5

M=li/lo

Question 6

Magnification (vergence)

Answer 6

M=Lo/Li

Question 7

Lens Maker’s

Answer 7

F=n’-n(R)

F=(n’-n)/r

Question 8

Radius of curvature

Answer 8

r=(y^2)/2s + (s/2)

Question 9

Curvature

Answer 9

R=1/r

Question 10

Primary Focal Point

Answer 10

F= -n/f

Question 11

Secondary Focal Point

Answer 11

F’=n/f’

Question 12

Velocity of light in ‘n’

Answer 12

ν= c/λ

Question 13

Index of refraction

Answer 13

n=ν/(3.0x10^8)

Question 14

Power (from object location)

Answer 14

xx’=-f’^2

(x= object distance)

(x’= image distance)

Question 15

If absolute value of M is greater than 1

Answer 15

Image is magnified

Question 16

If absolute value of M is less than 1

Answer 16

Image is minified

Question 17

If M is positive

Answer 17

Image is upright

Question 18

If M is negative

Answer 18

Image is inverted.

Question 19

n of glass

Answer 19

1.5230

Question 20

n of polycarbonate

Answer 20

1.5860

Question 21

n of CR-39

Answer 21

1.4980

Question 22

n of trivex (also lens clock calibration)

Answer 22

1.5300

Question 23

F’ to the left of a refracting surface means it’s

Answer 23

Diverging

Question 24

F’ to the right of a refracting surface means it’s

Answer 24

Converging