This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 40 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the waste-product of light-dependent reaction? A) Oxygen. B) Water. C) Carbon dioxide. D) None of the above. Show Answer Correct Answer: A) Oxygen. 2. A light wave consists of a A) Transverse wave. B) Longitudinal wave. C) All the above. D) None of the above. Show Answer Correct Answer: A) Transverse wave. 3. Identify the mirror which forms always a virtual and diminished image. A) Concave mirror. B) Converging mirror. C) Plane mirror. D) Convex mirror. Show Answer Correct Answer: D) Convex mirror. 4. The light received from candle is ..... A) Natural Source of light. B) Artificial Source of light. C) All the above. D) None of the above. Show Answer Correct Answer: B) Artificial Source of light. 5. Light travels in a straight line. This is called ..... propagation of light A) Rectilinear. B) Curvilinear. C) Twisted. D) None of the above. Show Answer Correct Answer: A) Rectilinear. 6. The gel-like material that surrounds the grana is called ..... A) Lamellae. B) Grain. C) Thylakoid. D) Stroma. Show Answer Correct Answer: D) Stroma. 7. Which determines the color of an object appears? A) Absorption. B) Diffraction. C) Reflection. D) Refraction. Show Answer Correct Answer: C) Reflection. 8. SHADOW OF MOON FALLING ON EARTH A) SOLAR ECLIPSE. B) LUNAR ECLIPSE. C) DAY AND NIGHT. D) ALL. Show Answer Correct Answer: A) SOLAR ECLIPSE. 9. IdeaPad Slim 5/5i offers a maximum battery backup of ..... ? A) Upto 9 Hours. B) Upto 11 Hours. C) Upto 13 Hours. D) Upto 14 Hours. Show Answer Correct Answer: B) Upto 11 Hours. 10. Which type of lamp provides more lumens per watt? A) High Intensity Discharge (HID). B) Incandescent. C) Halogen. D) All of the options (same efficacy). Show Answer Correct Answer: A) High Intensity Discharge (HID). 11. Light is a ..... A) Form of energy. B) Form of energy that causes the sensation of sun. C) Form of energy that causes a sensation of vision. D) None of the above. Show Answer Correct Answer: C) Form of energy that causes a sensation of vision. 12. What is the focal length? A) Length of the focus. B) Distance between the focus and the vertex (along the principal axis). C) Distance between the focus and the center of curvature (along the principal axis). D) Radius of curvature. Show Answer Correct Answer: B) Distance between the focus and the vertex (along the principal axis). 13. What is the angle of incidence of a ray if the reflected ray is at an angle of 90$^\circ$ to the incident ray? A) 60$^\circ$. B) 45$^\circ$. C) 90$^\circ$. D) 180$^\circ$. Show Answer Correct Answer: B) 45$^\circ$. 14. The most common example of a curved mirror is a:- A) Concave. B) Lateral. C) Erect. D) Spherical. Show Answer Correct Answer: D) Spherical. 15. When can water reflect light? A) When it's moving. B) When it's still. C) When it's flowing. D) None of the above. Show Answer Correct Answer: B) When it's still. 16. Energy that can travel through space and time. A) Energy. B) Light energy. C) Shadow. D) Reflect. Show Answer Correct Answer: B) Light energy. 17. ..... objects do not form any shadow. A) Opaque. B) Transparent. C) Translucent. D) None of the above. Show Answer Correct Answer: B) Transparent. 18. Animal have its own light A) Firefly. B) Cat. C) Moon. D) Cow. Show Answer Correct Answer: A) Firefly. 19. Mid point of section of spherical mirror A) Center of curvature. B) Focus. C) Pole. D) Radius. Show Answer Correct Answer: C) Pole. 20. We can't see our face clearly in moving water due to? A) Reflection. B) Refraction. C) Radation. D) Sight error. Show Answer Correct Answer: B) Refraction. 21. *An enzyme that fixes carbon from atmosphere to convert it to complex macromolecule glucose. A) RuBP (Ribulose bisphosphate). B) RuBisCo (Ribulose Bisphosphate Carboxylase). C) PGA (3-Phosphoglycerate). D) G3P (Glyceraldeyhyde 3-Phosphate). Show Answer Correct Answer: B) RuBisCo (Ribulose Bisphosphate Carboxylase). 22. Materials that allow light to pass through them are called ..... materials. A) Opaque. B) Transparent. C) Translucent. D) Clear. Show Answer Correct Answer: B) Transparent. 23. When light partially passed through an object, we say that that object is ..... A) Translucent. B) Transparent. C) Opaque. D) Optical. Show Answer Correct Answer: A) Translucent. 24. Two mirrors can produce infinite images when ..... between them A) Angle is 90. B) Angle is 180. C) Angle is 360. D) Angle is 0. Show Answer Correct Answer: D) Angle is 0. 25. Which colour bends the most after dispersion of light. A) Red. B) Pink. C) Blue. D) Violet. Show Answer Correct Answer: D) Violet. ← 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