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General Science

RAY OPTICS MCQs

Total Questions : 35

Page 1 of 4 pages
Question 1. Images seen in a plane mirror are always
  1.    Upright and Virtual
  2.    Upright and Real
  3.    Inverted and Virtual
  4.    Farther and Virtual
 Discuss Question
Answer is Option A. -> Upright and Virtual
Question 2. Speed of light in a vacuum is
  1.    represented by the symbol "c"
  2.    3.00 X108 m/s 
  3.    both answers are correct
  4.    All of above
 Discuss Question
Answer is Option C. -> both answers are correct
Question 3. True or False:We see colors because those colors are reflected back to our eyes
  1.    True
  2.    False
 Discuss Question
Answer is Option A. -> True
Question 4. An object is located 30 cm from a concave mirror
  1.    13.5 cm
  2.    0.0833 cm
  3.    12.0 cm
  4.    8.7 cm
 Discuss Question
Answer is Option C. -> 12.0 cm
Question 5. If a wave's speed is 5m/s and it has a wavelength of 2
  1.    12.5Hz
  2.    2.5Hz
  3.    7.5Hz
  4.    2Hz
 Discuss Question
Answer is Option D. -> 2Hz
Question 6. Which ways does light bend going from air to water?
  1.    away from the normal
  2.    towards the normal
  3.    does not ben
  4.    none of the above
 Discuss Question
Answer is Option B. -> towards the normal
Question 7. A real image is formed in plane mirror
  1.    True
  2.    False
 Discuss Question
Answer is Option B. -> False
Question 8. Through what kind of matter does light move fastest?
  1.    liquids
  2.    air
  3.    matter that is lighter in color
  4.    matter that is in larger objects 
 Discuss Question
Answer is Option B. -> air
Question 9. You have cool glow-in-the-dark stickers of Mickey Mouse
  1.    fluorescence
  2.    chemiluminescence
  3.    phosphorescence 
  4.    incandescence
 Discuss Question
Answer is Option C. -> phosphorescence 
Question 10. A concave lens forms the image of an object such that the distance between the object and image is 10 cm and the magnification produced is 1/4
  1.    8.6 cm
  2.    6.2 cm
  3.    10 cm
  4.    4.4 cm
 Discuss Question
Answer is Option D. -> 4.4 cm
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