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Optical Physics MCQ

Optical Physics

1. The image of a distant scene produced by a telescope objective is ___

Answer

Correct Answer: Real, inverted image

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2. The angular size of the smallest features that a telescope can see is called the angular ________.

Answer

Correct Answer: Resolution

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3. In the way that a magnifier is usually used, the object is placed __________.

Answer

Correct Answer: At the focal point of the lens

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4. Any bending of light that is not reflected or refracted is due to _________.

Answer

Correct Answer: Diffraction

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5. The retina's central focal point is the __________, which contains only cones, no rods.

Answer

Correct Answer: Fovea

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6. The electric vectors that make up polarized light are _________.

Answer

Correct Answer: Aligned

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7. Refracted light that bends away from the normal is light that has _______.

Answer

Correct Answer: Sped up.

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8. Light travels a path from one location to another in the least _________.

Answer

Correct Answer: Time

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9. Light travels _____ than ""the speed of light"" when it is not in a vacuum.

Answer

Correct Answer: Slower

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10. Light is one form of ________________ radiation.

Answer

Correct Answer: Electromagnetic

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11. The focal length is the distance from the midline of the lens to the _____.

Answer

Correct Answer: Focal point

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12. Specular reflection is common in the light reflected from _________.

Answer

Correct Answer: A mirror

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13. An object is placed as shown in front of a concave mirror. the image of the object will be _____.

Answer

Correct Answer: Be either real or virtual.

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14. Yellow light + blue light = _______ light

Answer

Correct Answer: White

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15. When viewing an object that is immersed in water, the image that is formed is __________.

Answer

Correct Answer: A virtual image

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16. The image seen in a plane mirror is located __________.

Answer

Correct Answer: Behind the mirror

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17. Slides are placed upside down in a slide projector to correct for the _______ image produced.

Answer

Correct Answer: Inverted

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18. The variable k is called the __________ of the wave.

Answer

Correct Answer: Wavenumber

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19. The number of wave cycles that pass in one second is called the _______ of the wave.

Answer

Correct Answer: Frequency

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20. Light reflecting from a horizontal surface is likely to be polarized _________.

Answer

Correct Answer: Horizontally

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21. _______ telescopes use mirrors to bring light to focus.

Answer

Correct Answer: Reflecting telescope

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