A laser beam is incident from air at an angle of 31.6 degree to the vertical ont

Question

A laser beam is incident from air at an angle of 31.6 degree to the vertical onto a solution of corn syrup. If the beam is refracted to 18.56 degree to the vertical, what is the index of refraction of the syrup solution? A. 1.72 B. 1.65 C. 0.607 D. 0.898 E. 1.11 Light of wavelength 600 nm in air goes into a medium where the index of refraction is 1.73. What is the frequency of this light in the medium? A. 5.00 times 10^14 Hz B./2.89 times 10^14 Hz C. 8.65 times 10^14 Hz D. 3.46 times 10^14 Hz E. 1.04 times 10^14 Hz A converging lens has a focal length of f = 4 cm. An object is located 6 cm from the lens. What kind of image is formed, and how does the image size compare to the size of the object? A. The image is real and bigger than the object B. The image is real and smaller than the object C. The image is virtual and bigger than the object D. The image is virtual and smaller than the object E. None of the above

Explanation / Answer

1/f= 1/di + 1/do

1/4=1/di+ 1/6

1/di= 1/4 - 1/6

di=12 cm

the image distance is positive, that means the object is real and inverted.

now magnification= -di/do

m=-12/6= -2

m>1, so the image is bigger in size than object.

so option (A) is correct

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