This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This is the example of dispersion of light A) Sky looks bright orange in the evening. B) Shadow. C) Pool seems shallower. D) Rainbow. Show Answer Correct Answer: D) Rainbow. 2. What does it mean to refract? A) Bounce off. B) To bend. C) Curve outward. D) Reflect. Show Answer Correct Answer: B) To bend. 3. According to Willebord Snell, light passing from air to glass will cause the light to A) Maintain its original speed. B) Accelerate while it is in glass. C) Increase its speed. D) Reduce its speed. Show Answer Correct Answer: D) Reduce its speed. 4. Choose an example of transparent object A) Book. B) Wall. C) Glass. D) Ball. Show Answer Correct Answer: C) Glass. 5. Hydrogen is a reactant. Light independent or light dependent stage? A) Light independent stage. B) Light dependent stage. C) All the above. D) None of the above. Show Answer Correct Answer: A) Light independent stage. 6. Interchange of the 'left' and 'right' sides in the image is known as- A) Lateral inversion. B) Reflection. C) All the above. D) None of the above. Show Answer Correct Answer: A) Lateral inversion. 7. Brooke wakes up in the morning to rind a rainbow produced by light shining through the fish tank near her window. Which of the following types of electromagnetic radiation produced the rainbow that Brooke saw? A) Ultraviolet. B) Infrared. C) White light. D) Gamma rays. Show Answer Correct Answer: C) White light. 8. As volume increases, ..... increases. A) Amplitude. B) Frequency. C) Pitch. D) Resting point. Show Answer Correct Answer: A) Amplitude. 9. The mirror whose focal length is negative is? A) Concave mirror. B) Convex mirror. C) Diverging mirror. D) Plane mirror. Show Answer Correct Answer: A) Concave mirror. 10. Which type of surface reflects light MOST clearly? A) Angled and dark. B) Shiny and smooth. C) Dark and grooved. D) Curved and clear. Show Answer Correct Answer: B) Shiny and smooth. 11. Which one of the following statements is true? A) A plane mirror sometimes forms an inverted image. B) A concave mirror always forms a virtual, erect and diminished image. C) A concave lens always forms a virtual, erect and diminished image. D) All of the above. Show Answer Correct Answer: C) A concave lens always forms a virtual, erect and diminished image. 12. When a light ray bounces off a rough surface, it reflects all over the place A) Diffraction. B) Reverberation. C) Scattering. D) Transmission. Show Answer Correct Answer: C) Scattering. 13. Occurs when light is sent in many direction as it passes through a medium. A) Absorption. B) Reflection. C) Refraction. D) Scattering. Show Answer Correct Answer: D) Scattering. 14. What is the role of light in photosynthesis? A) Light is only needed for plant growth, not photosynthesis. B) Light is used to absorb nutrients from the soil. C) Light is a byproduct of photosynthesis. D) Light is essential for photosynthesis as it provides the energy required for the conversion of carbon dioxide and water into glucose. Show Answer Correct Answer: D) Light is essential for photosynthesis as it provides the energy required for the conversion of carbon dioxide and water into glucose. 15. Dentist uses this to obtain an enlarged image of teeth A) Convex mirror. B) Concave mirror. C) All the above. D) None of the above. Show Answer Correct Answer: B) Concave mirror. 16. In the ..... , energy from the sun is used to make ATP A) Light-independent reaction. B) Dark reaction. C) Light-dependent reaction. D) Calvin cycle. Show Answer Correct Answer: C) Light-dependent reaction. 17. A form of matter that may or may not allow light to pass through it A) Small. B) Medium. C) Soild. D) Gas. Show Answer Correct Answer: B) Medium. 18. Rainbows are often seen A) After a rainstorm. B) Before a rainstorm. C) After the sun sets at night. D) Before a storm. Show Answer Correct Answer: A) After a rainstorm. 19. Which of the following is used as a side view mirror? A) Plane mirror. B) Concave mirror. C) Convex mirror. D) Convex lens. Show Answer Correct Answer: C) Convex mirror. 20. This mirror is also used as a shaving mirror to see a magnified image A) Convex and concave. B) Concave Mirror. C) Concavoconvx. D) Convex lens. Show Answer Correct Answer: B) Concave Mirror. 21. ..... is the bouncing back of light rays when striking on a surface. A) Refraction. B) Reflection. C) Repel. D) None of these. Show Answer Correct Answer: B) Reflection. 22. Light travels at a speed of ..... km/s. A) 3000. B) 3 million. C) 3 lakh. D) 30 lakh. Show Answer Correct Answer: C) 3 lakh. 23. Shining light on a ball covered with many tiny mirrors will cause light to ..... A) Reflect in many different directions. B) Reflect back in a curved line. C) Refract from the mirrors. D) Reflect straight back. Show Answer Correct Answer: A) Reflect in many different directions. 24. Light bends as it passes through water A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. An object which does not emit its own light is a non-luminous body. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← 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