This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The near point for a normal eye is A) 30 cm. B) 10 cm. C) 25 cm. D) Infinite. Show Answer Correct Answer: C) 25 cm. 2. The Object that do not allow any light to pass through them is called A) Shadow. B) Transparent Object. C) Opaque Object. D) Translucent Object. Show Answer Correct Answer: C) Opaque Object. 3. MATERIALS WHICH DO NOT ALLOW LIGHT TO PASS ARE CALLED A) OPAQUE OBJECTS. B) TRANSPARENT OBJECTS. C) TRANSLUCENT OBJECTS. D) None of the above. Show Answer Correct Answer: A) OPAQUE OBJECTS. 4. A shopkeeper wants to keep an eye on his store in order to prevent shoplifting. What could the shopkeeper hang on the wall in order to see a wider image of his store and his customers? A) A convex mirror. B) A concave mirror. C) A convex lens. D) A concave lens. Show Answer Correct Answer: A) A convex mirror. 5. Materials that let some light rays pass through but scatter some of the other rays A) Translucent. B) Transparent. C) Opaque. D) Wood. Show Answer Correct Answer: A) Translucent. 6. Angle i = A) Incident ray. B) Angle r. C) Angle n. D) Angle o. Show Answer Correct Answer: B) Angle r. 7. What kind of path does light take? A) It travels in a straight line until it hits something or goes through it. B) It bounces off all objects. C) It curves around all objects. D) It goes through all objects. Show Answer Correct Answer: A) It travels in a straight line until it hits something or goes through it. 8. Of the visible spectrum, what color has the longest wavelength? A) Blue. B) Green. C) Yellow. D) Red. E) Violet. Show Answer Correct Answer: D) Red. 9. A man is suffering from myopia. which of the following statements holds true for him? A) He can correct this defect by using convex lenses. B) He is not able to see the nearby objects clearly. C) This defect can only be treated surgically or through laser. D) He wears spectacles with concave lenses of appropriate focal length. Show Answer Correct Answer: D) He wears spectacles with concave lenses of appropriate focal length. 10. The mirror which forms virtual, erect and magnified image is ..... A) Converging mirror. B) Convex mirror. C) Plane mirror. D) Diverging mirror. Show Answer Correct Answer: A) Converging mirror. 11. Convex Lens is also called as A) Diverging lens. B) Converging lens. C) Both A &B. D) None of these. Show Answer Correct Answer: B) Converging lens. 12. How much does IdeaPad Slim 5i weights? A) 1.4Kg. B) 1.5Kg. C) 1.6kg. D) 1.8Kg. Show Answer Correct Answer: C) 1.6kg. 13. Light is able to pass through ..... materials A) Transparent. B) Shiny. C) Dull. D) Opaque. Show Answer Correct Answer: A) Transparent. 14. Why are you able to see yourself when you look in the mirror? A) The mirror reflects the light. B) Light bends as it hits the mirror. C) Light travels through the mirror. D) The mirror absorbs the light. Show Answer Correct Answer: A) The mirror reflects the light. 15. Which optical instrument can be best used to show multiple reflection? A) Mirror. B) Periscope. C) Eye glasses. D) Kaleidoscope. Show Answer Correct Answer: D) Kaleidoscope. 16. Which of the following uses light to help keep boats safe near land? A) Cell phone. B) Radio. C) Lighthouse. D) None of the above. Show Answer Correct Answer: C) Lighthouse. 17. The angle of reflection is equal to the angle of incidence. A) Sometimes. B) Always. C) Never. D) Under special case. Show Answer Correct Answer: B) Always. 18. Which of the following colors is not absorbed by chlorophyll pigments? A) Green. B) Blue. C) Violet. D) None of the above. Show Answer Correct Answer: A) Green. 19. The shadow gets ..... when screen is moved away. A) Smaller. B) Darker. C) Larger. D) No shadow. Show Answer Correct Answer: C) Larger. 20. The screen on which the image is formed A) Iris. B) Retina. C) Pupil. D) Cornea. Show Answer Correct Answer: B) Retina. 21. *It is used as a rear-view to see large area in a smaller frame A) Convex Mirror. B) Convex lens. C) Plane mirror. D) Option D. Show Answer Correct Answer: A) Convex Mirror. 22. ..... is a semiconductor diode that emits light when a voltage is applied to it and that is used especially in electronic devices. A) Light Emitting Diode (LED). B) Incandescent. C) Metal Halide. D) Fluorescent. Show Answer Correct Answer: A) Light Emitting Diode (LED). 23. The refractive indices of glass and water with respect to air are 3/2 and 4/3 respectively. If the speed of light in glass is 2 x 10$^{8}$ m/s, find the speed of light in water. A) 0.5 x 10$^{8}$ m/s. B) 3 x 10$^{8}$ m/s. C) 2.25 x 10$^{8}$ m/s. D) 2 x 10$^{8}$ m/s. Show Answer Correct Answer: C) 2.25 x 10$^{8}$ m/s. 24. Which term means to bounce off the surface of something? A) Refract. B) Absorb. C) Reflect. D) Prism. Show Answer Correct Answer: C) Reflect. 25. The dark area behind an object that has blocked light. A) Energy. B) Reflect. C) Refract. D) Shadow. Show Answer Correct Answer: D) Shadow. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books