blue orange and red
red, blue and orange
blue, red and orange
red, orange and blue
orange, blue and red
Correct answer is A
Upon passage through the prism, the white light is separated into its component colors - red, orange, yellow, green, blue and violet.
Which of the following is used for controlling the amount of light entering the eye?
Cornea
Pupil
Iris
Optic nerve
Ciliary muscle
Correct answer is C
No explanation has been provided for this answer.
20.0cm
47.5cm
50.0cm
52.5cm
125.0cm
Correct answer is D
Distance between lens = f0 + fe = 52.5cm
The eye defect illustrated in the diagram above can be corrected by a
convex mirror
concave mirror
diverging lens
converging lens
piano-converging lens
Correct answer is C
No explanation has been provided for this answer.
30cm
25cm
20cm
15cm
10cm
Correct answer is C
1/u + 1/3u = 1/15; u = 20cm
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