This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 42 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 42 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Length between two crest or troughs A) Frequency. B) Wavelength. C) Transparent. D) Translucent. Show Answer Correct Answer: B) Wavelength. 2. What happens during lateral inversion? A) The right of the object will be on the right side of the image. B) The left side of the object will be on the left side of the image. C) The upper part of the object will be at the bottom of the object. D) The right side of the object will be on the left side of the image. Show Answer Correct Answer: D) The right side of the object will be on the left side of the image. 3. Which of the following is NOT a product of the light reactions? A) Oxygen. B) NADPH. C) ATP. D) Glucose (Sugar). Show Answer Correct Answer: D) Glucose (Sugar). 4. We can see a non-luminous object when light ..... A) Emitted by the object falls on the eye. B) Is reflected from the object towards our eye. C) Completely passes through the object. D) Gets completely absorbed by the object. Show Answer Correct Answer: B) Is reflected from the object towards our eye. 5. A convex lens is A) Thick at the centre. B) Thin at the centre. C) Thick at the edges. D) Hollow at the centre. Show Answer Correct Answer: A) Thick at the centre. 6. The third color of white light if they are arranged from shortest to longest wavelength. A) Yellow. B) Blue. C) Green. D) Orange. Show Answer Correct Answer: B) Blue. 7. Which of the following is not needed for the formation of shadow? A) Source of light. B) Glass plate. C) Opaque body. D) Screen. Show Answer Correct Answer: B) Glass plate. 8. When we move an object away from the source of light, the shadow of the object ..... A) Become bigger. B) Becomes smaller. C) Remains the same. D) None of these. Show Answer Correct Answer: B) Becomes smaller. 9. If you look at a yellow banana through a red filter, what color will the banana be? A) Red. B) Yellow. C) Blue. D) Green. Show Answer Correct Answer: A) Red. 10. A material that blocks light from passing through it. Ex:wood and metal A) Opaque. B) Translucent. C) Lens. D) Transparent. Show Answer Correct Answer: A) Opaque. 11. Light is form of energy A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. Which waves have the highest energy? A) Gamma Ray. B) Infrared. C) Visible Light. D) Radio. Show Answer Correct Answer: A) Gamma Ray. 13. Translucent objects let only some light pass thru? A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 14. Reflection of light have ..... laws. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 15. In which of these situations would light slow down? A) From glass to air. B) From ice to water. C) From plastic to air. D) From a vacuum to air. Show Answer Correct Answer: D) From a vacuum to air. 16. Virtual images are A) Magnified. B) Inverted. C) Erect. D) Fake. Show Answer Correct Answer: C) Erect. 17. When light changes speed, its path is changed so that light rays are bent as they pass through. This is called: A) Reflection. B) Refraction. C) Mirroring. D) Absorption. Show Answer Correct Answer: B) Refraction. 18. When magenta, cyan and yellow pigments overlap, they will create what color? A) Red. B) Blue. C) White. D) Black. Show Answer Correct Answer: D) Black. 19. Which of the following is not an opaque material? A) Wood. B) Glass. C) Mirror. D) Frosted glass. Show Answer Correct Answer: A) Wood. 20. The property of light travelling in a straight line is called: A) Solar eclipse. B) Rectilinear propagation of light. C) Lunar eclipse. D) Translucent object. Show Answer Correct Answer: B) Rectilinear propagation of light. 21. Dentists use which types of mirror to see larger image of teeth? A) Concave. B) Convex. C) All the above. D) None of the above. Show Answer Correct Answer: A) Concave. 22. Given a point source of light, which of the following can produce a parallel beam of light? A) Converging lens. B) Diverging lens. C) Prism. D) Concave mirror. Show Answer Correct Answer: A) Converging lens. 23. What occurs when an object takes in a light wave? A) Reflection. B) Refraction. C) Absorption. D) Transparent. Show Answer Correct Answer: C) Absorption. 24. Example of a translucent object is A) Tissue paper. B) Rubber. C) Board. D) Door. Show Answer Correct Answer: A) Tissue paper. 25. The resulting color of light when blue is mix with green. A) Magenta. B) Yellow. C) Cyan. D) Orange. Show Answer Correct Answer: C) Cyan. ← 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