A ray of light strikes a thick sheet of glass (n = 1.5) at an angle of 20° with the normal. Find the angle of the refracted ray within the glass with respect to the normal

a. 31°
b. 0.23°
c. 37°
d. 13°
e. 20°


d

Physics & Space Science

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A microscope has an objective lens of focal length 1.4 mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective

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Physics & Space Science

Two flat rings each having outer diameter of 6 inches and inner diameter of 3 inches are parallel and 4 inches apart as shown. Determine the shape factors, F1-2 and F2-1, which are equal.

Physics & Space Science