This quiz works best with JavaScript enabled. Home > Grammar > Academic Writing > Reflection – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Reflection Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Light always travels in a A) Straight line. B) Wavy line. C) Curved line. D) Zig-zag line. Show Answer Correct Answer: A) Straight line. 2. Power of a lens is the ..... of its focal length. A) Value. B) Reciprocal. C) 2 times. D) Half. Show Answer Correct Answer: B) Reciprocal. 3. Level 1 True or false:When a point is reflected across a line of symmetry, it remains the same distance from the line. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. Reflect (6, -3) over the x-axis. A) (6, 3). B) (-6, -3). C) (-3, 6). D) (3, -6). Show Answer Correct Answer: A) (6, 3). 5. When translating LEFT or RIGHT you are moving on the ..... axis. A) X. B) Y. C) All the above. D) None of the above. Show Answer Correct Answer: A) X. 6. When an opaque object comes in the path of light it forms ..... A) An image with colors. B) Shadow. C) Black and white image. D) Depends on the colour of the light. Show Answer Correct Answer: B) Shadow. 7. An arrow that points north is rotated 90$^\circ$ clockwise. What direction does the arrow point after the rotation? A) Northeast. B) East. C) West. D) Southwest. Show Answer Correct Answer: B) East. 8. Point C (-5, 4) is reflected over the x-axis. What are the coordinates of C'? A) (5, 4). B) (-5, -4). C) (5, -4). D) (-5, 4). Show Answer Correct Answer: B) (-5, -4). 9. Another name for $y=0$ A) Y-axis. B) X-axis. C) $x=0$. D) $y=1$. Show Answer Correct Answer: B) X-axis. 10. When you rotate 180 degrees the ( x, y ) becomes? A) ( y, x ). B) (-y, x ). C) (-x, y ). D) (-x, -y ). Show Answer Correct Answer: D) (-x, -y ). 11. What are the people called which lives in the Rainforest of this video? A) Muruwari. B) Yanomami. C) Bhumiyas. D) None of the above. Show Answer Correct Answer: B) Yanomami. 12. A turn is also called a ..... A) Translation. B) Reflection. C) Rotation. D) Transformation. Show Answer Correct Answer: C) Rotation. 13. Dilute acid does not produce carbon dioxide on being treated with: A) Marble. B) Lime. C) Baking soda. D) Limestone. Show Answer Correct Answer: B) Lime. 14. The image reflected from a ..... surface may be larger, smaller, or upside down. A) Flat. B) Shiny. C) Curved. D) Rough. Show Answer Correct Answer: C) Curved. 15. MCQ 013A ray of light is incident on a plane mirror and the angle of incidence is 25 degrees. What is the angle of reflection? A) 0 degrees. B) 50 degrees. C) 90 degrees. D) 25 degrees. Show Answer Correct Answer: D) 25 degrees. 16. A slide of an object from one place to another. Preserves size and shape. A) Rotation. B) Translation. C) Vector. D) None of the above. Show Answer Correct Answer: B) Translation. 17. What is the angle between the incident ray and the normal called as A) Angle of incidence. B) Angle of reflection. C) Angle of convergent. D) Angle of divergent. Show Answer Correct Answer: A) Angle of incidence. 18. The mirror which has a wider field A) Plane mirror. B) Convex mirror. C) Concave mirror. D) None of the above. Show Answer Correct Answer: B) Convex mirror. 19. MCQ 012A ray of light is incident on a plane mirror and the angle of reflection is 50 degrees. What is the angle between the incident ray and the reflected ray? A) 50 degrees. B) 25 degrees. C) 90 degrees. D) 100 degrees. Show Answer Correct Answer: D) 100 degrees. 20. In a periscope, how is light directed to allow viewing over obstacles? A) Through refraction. B) By absorption. C) Using lenses. D) By reflection. Show Answer Correct Answer: D) By reflection. 21. Which transformation does this coordinate rule show? (x, y) $\rightarrow$ (-x, y) A) Reflection over x-axis. B) Reflection over y-axis. C) Translation 2 units down. D) Translation 4 units left. Show Answer Correct Answer: B) Reflection over y-axis. 22. In order to see a picture it must A) Produce light. B) Reflect light. C) Absorb light. D) None of the above. Show Answer Correct Answer: B) Reflect light. 23. A point object is placed at a distance of 20 cm from a convex mirror of focal length 20 cm. The image will form at: A) At infinity. B) At focus. C) At the pole. D) Behind the mirror. Show Answer Correct Answer: D) Behind the mirror. 24. The angle produced as a source of light bounces off a reflecting surface is called ..... A) Angle of crookedness. B) Angle of reflection. C) Angle of incidence. D) Angle of bounce. Show Answer Correct Answer: B) Angle of reflection. 25. Which of these statements is true? A) Light travels in straight lines. B) Light is stopped when it meets a solid object. C) Light does not travel in straight lines. D) Light will only travel for about 2000km before it stops. Show Answer Correct Answer: A) Light travels in straight lines. ← PreviousNext →Related QuizzesGrammar QuizzesReflection Quiz 1Reflection Quiz 2Reflection Quiz 3Reflection Quiz 4Reflection Quiz 5Reflection Quiz 6Reflection Quiz 7Reflection Quiz 8Reflection Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books