This quiz works best with JavaScript enabled. Home > Grammar > Academic Writing > Reflection – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Reflection Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When a wave is reflected from a surface, the angle of the reflection is equal to the angle of incidence. A) Law of Reflection. B) Interference. C) Normal. D) None of the above. Show Answer Correct Answer: A) Law of Reflection. 2. If an incident ray passes through the focus, the reflected ray will A) Pass through the pole. B) Retrace its path. C) Be parallel to the principal axis. D) Pass through the centre of curvature. Show Answer Correct Answer: C) Be parallel to the principal axis. 3. Which of the following surfaces would best reflect light? A) Rough concrete. B) Polished metal. C) Matte paper. D) Textured fabric. Show Answer Correct Answer: B) Polished metal. 4. A figured is dilated by a scale factor of 3. What rule could be used to find the new area? A) A $\rightarrow$ 3a. B) A $\rightarrow$ 3(3)a. C) A $\rightarrow$ 3 + a. D) A $\rightarrow$ 3 + 3 + a. E) Not here. Show Answer Correct Answer: B) A $\rightarrow$ 3(3)a. 5. How do you represent a translation Algebraically? A) (-y, -x). B) (x + a, y + b). C) (-x, -y). D) (ax, by). Show Answer Correct Answer: B) (x + a, y + b). 6. A mirror always form diminished image irrespective of the position of the object in-front of it, then the mirror is:- A) Plane mirror. B) Concave mirror. C) Convex mirror. D) Not possible. Show Answer Correct Answer: C) Convex mirror. 7. A figure is dilated so that point C(2, 9) becomes C'(8, 36). what is the rule for this transformation? A) (x, y) $\rightarrow$ (1/4x, 1/4y). B) (x, y) $\rightarrow$ (4x. 4y). C) (x, y) $\rightarrow$ (x + 6, y + 27). D) Not here. E) (x, y) $\rightarrow$ (x-6, y-27). Show Answer Correct Answer: B) (x, y) $\rightarrow$ (4x. 4y). 8. Quadrilateral PQRS has a vertex at (5, 2). What are the coordinates of this vertex after it is reflected across the x-axis? A) (5, -2). B) (-5, 2). C) (-5, -2). D) (5, 2). Show Answer Correct Answer: A) (5, -2). 9. . A ray of light passes from a medium X to another medium Y. No refraction of light occurs if the ray of light hits the boundary of medium Y at an angle of: A) 120$^{o}$. B) 0$^{o}$. C) 90$^{o}$. D) 45$^{o}$. Show Answer Correct Answer: C) 90$^{o}$. 10. Reflections over the x-axis change the ..... A) Y-coordinate. B) X-coordinate. C) Angle measurements. D) Order of the coordinates. Show Answer Correct Answer: A) Y-coordinate. 11. When light hits a barrier that is solid/opaque what is usually created? A) A hot object. B) A shadow. C) Nothing. D) None of the above. Show Answer Correct Answer: B) A shadow. 12. What does a translation do to a figure on the coordinate plane? A) Rotates it. B) Flips it. C) Shrinks it. D) Slides it. Show Answer Correct Answer: D) Slides it. 13. If 'R' is radius of curvature and 'f' is focal length of a spherical mirror then the correct relation between the two is A) R = f. B) R = f/2. C) F = 2R. D) F = R/2. Show Answer Correct Answer: D) F = R/2. 14. The transformation(x, y) $\rightarrow$ (y, x)is the rule for ..... A) Reflecting in y =-x. B) Reflecting in y = 1. C) Reflecting in x = 1. D) Reflecting in y = x. Show Answer Correct Answer: D) Reflecting in y = x. 15. Diagonal AC of a rectangle ABCD is produced to the point E such that 2:1, AB =8cm and BC=6m.The length of DE is A) 2root 19cm. B) 3root17 cm. C) 15 cm. D) 13 cm. Show Answer Correct Answer: C) 15 cm. 16. A spherical mirror and a thin spherical lens have focal length of-20 cm. The mirror and lens will be: A) Both concave. B) Mirror is concave and lens is convex. C) Both convex. D) Mirror is convex and lens is concave. Show Answer Correct Answer: A) Both concave. 17. In an experiment, a beam of light hits a mirror at an angle of 30 degrees to the normal. What will be the angle of reflection? A) 15 degrees. B) 30 degrees. C) 45 degrees. D) 60 degrees. Show Answer Correct Answer: B) 30 degrees. 18. Newton's first law of motion says that a moving body should continue to move forever, unless some external forces act on it. But a moving cycle comes to rest after some time if we stop pedaling it. Can you choose the correct reason for the stoppage of cycle?i. Air resistanceii. Gravitational pull of the earthiii. Friction of the road iii. Heat of the environmentChoose the correct option: A) (iii) and (iv). B) (i) and (iii). C) (i) and (ii). D) (ii) and (iii). Show Answer Correct Answer: B) (i) and (iii). 19. Translations are always ..... A) Congruent. B) Bigger. C) Smaller. D) Rotated. Show Answer Correct Answer: A) Congruent. 20. Convex mirror is used as a rear view mirror in vehicles because:- A) It always forms erect image. B) It covers wide range of view for image formation. C) It always forms image behind the mirror. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. Point M (-3, 5) is translated using this rule. (x, y) $\rightarrow$ (x-1, y) What are the coordinates of M'? A) (-4, 5). B) (-2, 5). C) (-4, 4). D) (-3, 4). Show Answer Correct Answer: A) (-4, 5). 22. A ..... lens makes objects appear bigger. A) Concave. B) Convex. C) Prism. D) Flat. Show Answer Correct Answer: B) Convex. 23. Level 2 When a figure is reflected over a line of reflection, the new image is congruent to the original. True or False A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. Which of the following best describes the image formed by a plane mirror? A) Virtual, inverted and enlarged. B) Real, inverted and reduced. C) Virtual, upright and the same size as object. D) Real, upright and the same size as object. Show Answer Correct Answer: C) Virtual, upright and the same size as object. 25. Write the rule for this translation:Slide 3 up and 2 right A) (x, y)$\rightarrow$(x + 3, y + 2). B) (x, y)$\rightarrow$(x+2, y + 3). C) (x, y)$\rightarrow$(x-2, y + 3). D) None of the above. Show Answer Correct Answer: B) (x, y)$\rightarrow$(x+2, y + 3). ← PreviousNext →Related QuizzesGrammar QuizzesReflection Quiz 1Reflection Quiz 3Reflection Quiz 4Reflection Quiz 5Reflection Quiz 6Reflection Quiz 7Reflection Quiz 8Reflection Quiz 9Reflection Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books