This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 33 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 33 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. MARK INCORRECT A) MIRROR CAN REFLECT THE LIGHT TO A DIFFERENT OR SAME DIRECTION DEPENDING UPON THE LOCATION OF SOURCE. B) PINHOLE CAMERA GIVES INVERTED AND SMALL IMAGE ON THE SCREEN. C) LUNAR ECLIPSE FALLS ON NO MOON DAY. D) SOLAR ECLIPSE TAKES PLACE ON NEW MOON DAY. Show Answer Correct Answer: C) LUNAR ECLIPSE FALLS ON NO MOON DAY. 2. A student obtains a blured image of a distant object on a screen using a convex lens.To obtain a distinct image on the screen he should move the lens A) Away from the screen. B) Towards the screen. C) To a point very far away from the screen. D) Either towards or away from the screen depending upon the position of the object. Show Answer Correct Answer: D) Either towards or away from the screen depending upon the position of the object. 3. Image formed in a concave mirror between F and P is A) Magnified and real. B) Diminished and virtual. C) Same size as the object and virtual. D) Magnified and virtual. Show Answer Correct Answer: D) Magnified and virtual. 4. An example of an opaque object is A) Book. B) Glass. C) Water. D) Air. Show Answer Correct Answer: A) Book. 5. Reflect means ..... A) Light bounces back. B) Light goes through and bends. C) Light goes straight through. D) Light gets taken in. Show Answer Correct Answer: A) Light bounces back. 6. Sun is an example of A) Natural source of light. B) Man made source of light. C) All the above. D) None of the above. Show Answer Correct Answer: A) Natural source of light. 7. Assertion (A):Power of a concave lens is negative. Reason (R):A concave lens has a virtual focus A) A) Both (A) and (R) are true and (R) is the correct explanationofthe(A). B) (b) Both(A)and(R)aretrue, but(R)isnotthecorrect explanationofthe(A). C) (c) (A)istrue, but(R)isfalse. D) (d) (A)isfalse, but(R)istrue. Show Answer Correct Answer: A) A) Both (A) and (R) are true and (R) is the correct explanationofthe(A). 8. Which color of light bends the most? A) Violet. B) Red. C) Yellow. D) Indigo. Show Answer Correct Answer: A) Violet. 9. The bouncing of light by any smooth surface, like a mirror, is called A) Refraction. B) Galvanization. C) Reflection. D) None of these. Show Answer Correct Answer: C) Reflection. 10. If we observe closely, we will find that the Moon changes in its appearance everyday, this is due to A) The Sun light that falls on the Moon. B) The Sun's Shadow that falls on the Moon. C) The Earth's shadow that falls on the Moon. D) The Moon's own light. Show Answer Correct Answer: A) The Sun light that falls on the Moon. 11. Theangle of reflection is equal to the angle of incidence A) Always. B) Sometimes. C) Under special circumstances. D) Never. Show Answer Correct Answer: A) Always. 12. If you stand at a distance of 2 feet in front of the plane mirror, what will be the distance between your image and you? A) 2 feet. B) 3 feet. C) 1 foot. D) 4 feet. Show Answer Correct Answer: D) 4 feet. 13. What is the main purpose of the light dependent reactions? A) To provide the energy for the calvin cycle. B) To capture energy and make sugar. C) To reflect green light. D) To make sugars. Show Answer Correct Answer: A) To provide the energy for the calvin cycle. 14. Which of the following relation is true for spherical mirror? A) F=r. B) F=2r. C) R=2f. D) 2f=r. Show Answer Correct Answer: C) R=2f. 15. When you enter a dark room, your pupil will? A) Decrease in size. B) Increase in size. C) No change. D) Turns white. Show Answer Correct Answer: B) Increase in size. 16. The geometrical centre of a spherical mirror is called the A) Centre of curvature. B) Pole of the mirror. C) Principal focus. D) Focal length. Show Answer Correct Answer: B) Pole of the mirror. 17. Light travels along a ..... A) Straight. B) Curve. C) Up down. D) None of these. Show Answer Correct Answer: A) Straight. 18. Why is a spectrum of seven colours formed when sunlight passes through a prism? A) White light is a mixture of seven colours. B) The different colours of light is reflected at different angles in a glass prism. C) The prism adds colour to the white sunlight. D) Light travels at high speed. Show Answer Correct Answer: B) The different colours of light is reflected at different angles in a glass prism. 19. What is the minimum distance between the image and its object in a concave mirror? A) Zero. B) 1m. C) There is no definite distance. D) All of these. Show Answer Correct Answer: A) Zero. 20. Name the part of the eye which gives colour to the eyes. A) Cornea. B) Iris. C) Pupil. D) Retina. Show Answer Correct Answer: B) Iris. 21. A ..... telescope uses a mirror to focus light onto a small area. A) Reflecting. B) Refracting. C) Radio. D) Spectrum. Show Answer Correct Answer: A) Reflecting. 22. What is light that is seen by humans called? A) X-rays. B) Photographs. C) Visible light. D) Infrared light. Show Answer Correct Answer: C) Visible light. 23. Light can travel through air, water and space. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. Tom is using a mirror and a flashlight to show which property of light? A) Reflection. B) Refraction. C) Translucence. D) Absorption. Show Answer Correct Answer: A) Reflection. 25. Blocks all light and forms shadow A) Opaque objects. B) Transparent objects. C) Translucent objects. D) Reflection. Show Answer Correct Answer: A) Opaque objects. ← 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