This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Waves with more energy are more damaging to humans. What are the 3 wave properties that give a wave more energy? A) Lower amplitude, lower frequency, longer wavelength. B) Faster frequency, shorter wavelength, smaller amlitude. C) The qualities of waves are random. It doesn't matter. D) Faster frequency, shorter wavelength, bigger amplitude. Show Answer Correct Answer: D) Faster frequency, shorter wavelength, bigger amplitude. 2. Why is it better to wear a white shirt than a black shirt in the summer? A) White shirts reflect all colors of visible light. B) Black shirts reflect all colors of visible light. C) Black material weighs more. D) White material weighs less. Show Answer Correct Answer: A) White shirts reflect all colors of visible light. 3. A shadow is a dark patch formed because of obstruction of light be an object. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. Putting a pencil in water and observing how it looks broken demonstrates the bending of light. The light traveling through the water is slowed down causing the pencil to look disconnected A) Reflection. B) Refraction. C) Transparent. D) Opaque. Show Answer Correct Answer: B) Refraction. 5. ..... refers to collection of rays A) Photon. B) Beam. C) Shadow. D) Image. Show Answer Correct Answer: B) Beam. 6. Which colour has more wavelength and can travel long distance A) Blue. B) Violet. C) Indigo. D) Red. Show Answer Correct Answer: D) Red. 7. Latif wakes up one morning and sees that it is foggy outside.Whcih term best describe the fog he sees A) Opaque. B) Reflective. C) Transparent. D) Translucent. Show Answer Correct Answer: D) Translucent. 8. The concave mirror has an inverted area A) Inward. B) Outward. C) Both inward and outward. D) None. Show Answer Correct Answer: A) Inward. 9. On which principle does the pinhole camera work on? A) Calvinear propagation of light. B) Rectilinear propagation of light. C) All the above. D) None of the above. Show Answer Correct Answer: B) Rectilinear propagation of light. 10. A mirror changes the direction of light that falls on it. this change of direction by a mirror is called ..... A) Reflection of sound. B) Reflection of light. C) Reflection. D) Reflectaion of light. Show Answer Correct Answer: B) Reflection of light. 11. Who discovered dispersion of light? A) Galileo Galilei. B) Isaac Newton. C) Archimedes. D) Nikola Tesla. Show Answer Correct Answer: B) Isaac Newton. 12. What is the nature of the image formed when the object is placed at the centre of curvature? A) Real, inverted and highly diminished. B) Real, inverted and diminished. C) Real, inverted and same size. D) Real, inverted and highly enlarged. Show Answer Correct Answer: C) Real, inverted and same size. 13. A lemon appears yellow because the lemon ..... yellow light. A) Bends. B) Refracts. C) Absorbs. D) Reflects. Show Answer Correct Answer: D) Reflects. 14. We are able to most of the things around us because of A) Regular Reflection. B) Irregular Reflection. C) All the above. D) None of the above. Show Answer Correct Answer: B) Irregular Reflection. 15. The mirror in which right of an object appears left of image and left of an object appears right is called A) Plane. B) Concave. C) Convex. D) Lateral. Show Answer Correct Answer: D) Lateral. 16. What is the function of optic nerve? A) It helds the eye lens at proper place. B) It carries optical messages in form of electric signals to the brain. C) It regulate the amount of light entering the eye. D) It lends colour to the eye. Show Answer Correct Answer: B) It carries optical messages in form of electric signals to the brain. 17. Energy that can be seen by the human eye is called ..... A) Eyesight. B) Visible light. C) Frequency. D) Wavelength. Show Answer Correct Answer: B) Visible light. 18. Where we see light house? A) Near seashore. B) In desert. C) Near hospital. D) None of the above. Show Answer Correct Answer: A) Near seashore. 19. During afternoon, shadow formed is very A) Big. B) Small. C) Straight. D) Curve. Show Answer Correct Answer: B) Small. 20. If we are not able to see clearly through the objects then that object is known as A) Translucent object. B) Opaque objects. C) Transparent objects. D) All of the above. Show Answer Correct Answer: A) Translucent object. 21. What does Newton's Disc depict A) Spectrum of Light. B) Rectillinear Propagation of Light. C) Wavelenth of Light. D) None of the above. Show Answer Correct Answer: A) Spectrum of Light. 22. How Many Colors Does Rainbow (out of the box) A) 1. B) 2. C) 8. D) 7. Show Answer Correct Answer: D) 7. 23. Which of the following is correct about eye lens A) Flexible, concave, living cell. B) Flexible, convex, living cell. C) Hard, convex, living. D) Soft, convex, non living. Show Answer Correct Answer: B) Flexible, convex, living cell. 24. SUN, STARS AND FIREFLY ARE ..... SOURCES OF LIGHT A) ARTIFICIAL. B) NATURAL. C) MAN-MADE. D) None of the above. Show Answer Correct Answer: B) NATURAL. 25. The bouncing back of light rays when they fall on a shiny surface is called ..... of light. A) Reflection. B) Rectilinear propagation. C) Lateral inversion. D) Splitting. Show Answer Correct Answer: A) Reflection. ← PreviousNext →Related QuizzesClass 7 Science Chapter 11 Light Quiz 1Class 7 Science Chapter 11 Light Quiz 2Class 7 Science Chapter 11 Light Quiz 3Class 7 Science Chapter 11 Light Quiz 4Class 7 Science Chapter 11 Light Quiz 5Class 7 Science Chapter 11 Light Quiz 6Class 7 Science Chapter 11 Light Quiz 7Class 7 Science Chapter 11 Light Quiz 8Class 7 Science Chapter 11 Light Quiz 9Class 7 Science Chapter 11 Light Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books