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A ray of yellow light (lambda = 590 nm) is passing from diamond to quartz at an

ID: 1648606 • Letter: A

Question

A ray of yellow light (lambda = 590 nm) is passing from diamond to quartz at an angle of 45 degree relative to the boundary's normal. What is the angle of the refracted ray (relative to the normal)? a. 5.12 degree b. 10.1 degree c. 32.5 degree d. 45.1 degree e. The light is totally internally reflected If the focal length of a compound microscope's eyepiece is 6 cm and the desired angular magnification is 50 times larger, what is the required distance between the eyepiece and the objective lens if the focal length of the objective lens is 2 mm (and assuming a near point of 25 cm)? a. 120 cm b. 14 cm c. 8.4 cm d. 4.2 cm e. 1.2 cm Suppose a rectangular wire loop with resistance 5 ohm is moving at 12 cm/sec into an area of uniform magnetic field (B = 0.85 T) as shown. What is the magnitude and direction of the current in the loop as the loop enters the field area? What is the magnitude of the current in the loop after the loop is fully in the uniform magnetic field?

Explanation / Answer

15) (e) The light is totally internally reflected.

Critical angle for diamond is about 25 degrees. For the given scenario, the angle of incidence is greater than 25 degress, so the ray of light will be totally internally reflected.

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