Question

A narrow beam of light containing red (660 nm) and blue (470 nm) wavelengths travels from air through a 2.00 cm thick flat piece of crown glass and back to air again. The beam strikes the glass at a 27.0° incident angle.

(a)

At what angles do the two colors emerge from the glass?

red  °

blue  °

(b)

By what distance (in cm) are the red and blue separated when they emerge?

A narrow beam of light containing red (660 nm) and blue (470 nm) wavelengths travels from air through a 2.00 cm thick flat piece of crown glass and back to air again. The beam strikes the glass at a 27.0° incident angle. (a) At what angles do the two colors emerge from the glass? red 27 blue 27 (b) By what distance (in cm) are the red and blue separated when they emerge? 5.442e-5 cm

Answer 1

CLASSTIME Page No. Date M According to Shell's law, - Q = sin" (n. Sin (8) as n = 1 , My = 1.512 , no = 1.524. Refracting angle for Reds - (Orleed - Sin" ( 1 x Sin27) (Oxbred = 17.45° Refracting angle off for blues (64) - ik (1x Siw37 __ (QJ) Aloe - 17.33º Now the Separation between them when they Омегче, , Ad = 2 x dan (17.45°) - Rx tau 17.33")] I 1.524 Ad = Ad: 2x0.00228 0.00459 cm cm