This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Academic Writing > Reflection – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Reflection Quiz 14 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Triangle ABC has vertices A(5, 2). Find the coordinates of ABC after a reflection over the x-axis. A) A'(-5, -2). B) A'(-5, -2). C) A'(5, 2). D) A'(5, -2). Show Answer Correct Answer: D) A'(5, -2). 2. If the angle of incidence is 40 degrees, what is the angle of reflection? A) 50 degrees. B) 60 degrees. C) 40 degrees. D) 90 degrees. Show Answer Correct Answer: C) 40 degrees. 3. The image of an object, which is placed one foot in front of a plane mirror, will be ..... A) Behind the mirror and reversed, left to right. B) Behind the mirror. C) In front of the mirror and reversed, left to right. D) In front of the mirror. Show Answer Correct Answer: A) Behind the mirror and reversed, left to right. 4. Reflections are always ..... A) Congruent. B) Bigger. C) Smaller. D) Rotated. Show Answer Correct Answer: A) Congruent. 5. Which of the following is natural sources of light? A) Fire. B) Sun. C) Stars. D) All of the above. Show Answer Correct Answer: D) All of the above. 6. Point B(-7, -12) is reflected over the x-axis. What are the coordinates of B'? A) (-7, 12). B) (7, -12). C) (-7, -12). D) (7, 12). Show Answer Correct Answer: A) (-7, 12). 7. A convex lens is A) Thinner throughout. B) Thicker in the middle, thinner at edges. C) Thicker throughout. D) Thinner in middle, thicker at edges. Show Answer Correct Answer: B) Thicker in the middle, thinner at edges. 8. A ship of mass 3 x $10^7$ $10^4$ A) 1.5m/s. B) 0.1m/s. C) 0.5m/s. D) 1.1m/s. Show Answer Correct Answer: B) 0.1m/s. 9. A small air bubble in a glass block when seen from above appears to be raised because of A) Refraction of light. B) Reflection of light. C) Reflection and refraction of light. D) None of the above. Show Answer Correct Answer: A) Refraction of light. 10. An object is placed at a distance of 0.25 min front of a plane mirror. The distance between the object and image will be: ..... A) 0.5 m. B) 0.25 m. C) 1.0 m. D) 0.125 m. Show Answer Correct Answer: A) 0.5 m. 11. Two plane mirrors are placed parallel and facing each other.A light ray incident on one of the plane mirror at an angle of 45$^\circ$ after reflection from it strikes the other mirror.What is the angle between the incident ray and final reflected ray A) 90$^\circ$. B) 45$^\circ$. C) 75$^\circ$. D) 60$^\circ$. Show Answer Correct Answer: A) 90$^\circ$. 12. A concave mirror of radius 30 cm is placed in water. It's focal length in air and water differ by A) 0. B) 60. C) 30. D) 15. Show Answer Correct Answer: A) 0. 13. Point R' (-2, 8) is the image of point R (-2, 2). Which of the following could be that transformation? A) A reflection across the y-axis. B) A dilation with a scale factor of 4. C) A translation of 6 units up. D) A translation of 6 units to the right. Show Answer Correct Answer: C) A translation of 6 units up. 14. Which of the following is a real-world application of reflection? A) Magnifying glass. B) Solar panels. C) Spectacles. D) Fiber optics. Show Answer Correct Answer: D) Fiber optics. 15. If your angle of incidence is 68 degrees, what is the angle of reflection going to be? A) 68 degrees. B) 90 degrees. C) 32 degrees. D) 72 degrees. Show Answer Correct Answer: A) 68 degrees. 16. Which types of objects do not allow light to pass through them? A) Translucent. B) Transparent. C) Penumbra. D) Opaque. Show Answer Correct Answer: D) Opaque. 17. White light is made up of: A) Red, yellow, and blue. B) No colors. C) All colors. D) Red, green, and blue. Show Answer Correct Answer: C) All colors. 18. O is the point of intersection of the diagonals AC and BD of a trapezium ABCD with AB || DC.Through O, a line segment PQ is drawn parallel to AB meeting AD in P and BC in Q, then OP= A) OP=OQ. B) OP=2OQ. C) OP=1/3OQ. D) OQ=2OP. Show Answer Correct Answer: A) OP=OQ. 19. When light reflects it ..... A) Bounces. B) Bends. C) Continues in a straight line. D) Absorbs. Show Answer Correct Answer: A) Bounces. 20. Which axis is the vertical (up-down) one? A) X-axis. B) Y-axis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Y-axis. 21. B(-2, -4)Reflect over the line y = x A) (-4, 2). B) (4, 2). C) (-4, -2). D) (2, -4). Show Answer Correct Answer: C) (-4, -2). 22. Which of the following is an example of a figure that has undergone a reflection? A) Letter 'D'. B) Circle. C) Triangle. D) Number '7'. Show Answer Correct Answer: A) Letter 'D'. 23. If a man wishes to use a plane mirror on a wall to view both his head and his feet as he stands in front of the mirror, the required length of the mirror A) Is equal to the height of the man. B) Is equal to one half the height of the man. C) Is equal to double the height of the man. D) Depends on the distance the man stands from the mirror. Show Answer Correct Answer: B) Is equal to one half the height of the man. 24. Which is the correct algebraic representation for a reflection across the y-axis? A) (x, y) $\rightarrow$ (-x, y ). B) (x, y) $\rightarrow$ ( x, y ). C) (x, y) $\rightarrow$ ( x, -y ). D) None of the above. Show Answer Correct Answer: A) (x, y) $\rightarrow$ (-x, y ). 25. A reflection over the $y-axis$ A) Change the sign of the y-coordinate while the sign for the x-coordinate stays the same. B) Change the sign of the x-coordinate while the sign for the y-coordinate stays the same. C) Change the sign for both the x and the y-coordinates. D) Nothing will change. Show Answer Correct Answer: B) Change the sign of the x-coordinate while the sign for the y-coordinate stays the same. 26. The sun in the early morning can cause buildings to form shadows. This shadow will be: A) Fat. B) Long. C) Short. D) Thin. Show Answer Correct Answer: B) Long. 27. A transformation that flips each point of a shape over the same line is called a ..... A) Transformation. B) Translation. C) Reflection. D) Rotation. Show Answer Correct Answer: C) Reflection. 28. An object is 100 mm in front of a concave mirror which produces an upright image (erect image). The radius of curvature of the mirror is: A) Less than 100 mm. B) Between 100 mm and 200 mm. C) Exactly 200 mm. D) More than 200 mm. Show Answer Correct Answer: D) More than 200 mm. 29. Focal length of convex lens is 15 cm, it's radius of curvature Will be A) 30 cm. B) 15 cm. C) 40 cm. D) 60 cm. Show Answer Correct Answer: A) 30 cm. 30. Describe the translation of Point A (3, -8) to A'(-4, -5). A) (x-4, y-5). B) (x+7, y-3). C) (x-3, y+7). D) (x-7, y+3). Show Answer Correct Answer: D) (x-7, y+3). ← 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