The lens in your eye and the cornea both contribute to image formation
a. True
b. False
Indicate whether the statement is true or false
True
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Which of the following statements is true of green grass?
A) It absorbs red light and emits green light. B) It absorbs red light and reflects green light. C) It transmits all colors of light except green. D) It means the lawn is healthy.
What Diopter takes an object at 47. cm and forms an upright image 23. cm from the lens?
A) +2.2 D B) -0.022 D C) -2.2 D D) 2.2 × 102 D E) +0.022 D
Contrast apparent and absolute magnitudes
What will be an ideal response?
The lowest-pitch tone to resonate in a pipe of length L that is closed at one end and open at the other end is 200 Hz. Which one of the following frequencies will NOT resonate in the same pipe?
A) 400 Hz B) 600 Hz C) 1000 Hz D) 1400 Hz E) 1800 Hz