This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Academic Writing > Reflection – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Reflection Quiz 12 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The relation between focal length and radius of curvature is A) R = 2f. B) R = 2/f. C) F = R/2. D) 1/f = 2R. Show Answer Correct Answer: C) F = R/2. 2. What does this transformation say to do?(x, y) $\rightarrow$ (x, y +4) A) Slide down 4. B) Slide up 4. C) Slide right 4. D) Slide left 4. Show Answer Correct Answer: B) Slide up 4. 3. If a figure is dilated by a scale factor of 1/3, what happens to perimeter? A) Not here. B) 1/3 of the size. C) 1/9 the size. D) 2/9. E) 2/3 the size. Show Answer Correct Answer: B) 1/3 of the size. 4. What is the reflected ray? A) The ray which strikes the surface. B) The ray which forms 90 degree angle with the surface. C) The ray which passes through the surface. D) The ray which gets deflected from the surface. Show Answer Correct Answer: D) The ray which gets deflected from the surface. 5. The image of B(3, -2) after reflected in the x-axis is A) B'(2, -3). B) B'(3, 2). C) B'(3, -2). D) B'(-3, -2). Show Answer Correct Answer: B) B'(3, 2). 6. A plant grown in the garden will be a healthy plant. A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 7. $\Delta$J'K'L' is the image after reflecting $\Delta$JKL across the y-axis. The coordinates of J' are (1, 7). What are the coordinates of J? A) (1, -7). B) (-1, -7). C) (7, 1). D) (-1, 7). Show Answer Correct Answer: D) (-1, 7). 8. The image formed by a concave mirror when the object is placed between the pole and the focus is ..... A) Virtual, erect and magnified. B) Virtual, erect and diminished. C) Real, inverted and magnified. D) Real, inverted and diminished. Show Answer Correct Answer: A) Virtual, erect and magnified. 9. How many types of Rainforests are there and what are they? A) 1-Polar Forest. B) 2-Tropical and Temperate. C) 4-Tropica, Temperate, polar, cold forests. D) None of the above. Show Answer Correct Answer: B) 2-Tropical and Temperate. 10. How many days does it rain in a rain forest? A) 600 days. B) 200 days. C) 40 days. D) None of the above. Show Answer Correct Answer: B) 200 days. 11. Which of the following would be an example of using a convex mirror effectively? A) Otoscopic mirror for concentrating light. B) Security mirror in store to increase range of view. C) Dental mirror for closer examination. D) Satellite dishes for collecting radio waves. Show Answer Correct Answer: B) Security mirror in store to increase range of view. 12. The point on the lens through which ray of light passes on un deviated is A) Aperture. B) Optic centre. C) Principle focus. D) Focal length. Show Answer Correct Answer: B) Optic centre. 13. What is the algebraic notation of a figure is Translated 2 units right and 5 units up? A) (x, y) $\rightarrow$ (5x, 2y). B) (x, y) $\rightarrow$ (x + 2, y + 5). C) (x, y) $\rightarrow$ (x-2, y-5). D) (x, y) $\rightarrow$ (x + 5, y-2). Show Answer Correct Answer: B) (x, y) $\rightarrow$ (x + 2, y + 5). 14. Light always travels in a A) Curved line. B) Wavy line. C) Straight line. D) Zig-zag line. Show Answer Correct Answer: C) Straight line. 15. Power of a lens is the ..... of its focal length. A) Value. B) 2 times. C) Half. D) Reciprocal. Show Answer Correct Answer: D) Reciprocal. 16. 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. 17. Reflect (6, -3) over the x-axis. A) (-3, 6). B) (-6, -3). C) (3, -6). D) (6, 3). Show Answer Correct Answer: D) (6, 3). 18. 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. 19. 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. 20. An arrow that points north is rotated 90$^\circ$ clockwise. What direction does the arrow point after the rotation? A) West. B) East. C) Southwest. D) Northeast. Show Answer Correct Answer: B) East. 21. 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: A) (-5, -4). 22. Another name for $y=0$ A) $y=1$. B) X-axis. C) $x=0$. D) Y-axis. Show Answer Correct Answer: B) X-axis. 23. 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 ). 24. 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. 25. A turn is also called a ..... A) Reflection. B) Translation. C) Rotation. D) Transformation. Show Answer Correct Answer: C) Rotation. 26. Dilute acid does not produce carbon dioxide on being treated with: A) Marble. B) Lime. C) Limestone. D) Baking soda. Show Answer Correct Answer: B) Lime. 27. The image reflected from a ..... surface may be larger, smaller, or upside down. A) Shiny. B) Flat. C) Rough. D) Curved. Show Answer Correct Answer: D) Curved. 28. 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) 25 degrees. B) 0 degrees. C) 90 degrees. D) 50 degrees. Show Answer Correct Answer: A) 25 degrees. 29. 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. 30. What is the angle between the incident ray and the normal called as A) Angle of incidence. B) Angle of convergent. C) Angle of divergent. D) Angle of reflection. Show Answer Correct Answer: A) Angle of incidence. ← PreviousNext →Related QuizzesGrammar QuizzesEnglish Grammar QuizzesReflection Quiz 1Reflection Quiz 2Reflection Quiz 3Reflection Quiz 4Reflection Quiz 5Reflection Quiz 6Reflection Quiz 7Reflection Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books