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Light Reflection and Refraction Class 10 Extra Questions

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Here in this article, you will find Light Reflection and Refraction Class 10 Extra Questions of Physics. These extra questions will help you when you go through NCERT Solutions for class  10 science chapter 10 completely.

 In Light Reflection and Refraction Class 10 Extra Questions, you will find extra questions for better practice that will help you in your board exams.

Light Reflection and Refraction Class 10 Extra Questions
Light Reflection and Refraction Class 10 Extra Questions


Light Reflection and Refraction Class 10 Extra Questions

 

Light Reflection and Refraction Class 10 Extra Questions consist of the definition of reflection and refraction, laws of reflection, types of reflection, mirrors- plane, spherical mirrors, convex and concave mirrors, types of lenses- convex lens and a concave lens, absolute refraction, image formation by mirrors and lenses. To secure good marks in the exams. MCQ on reflection and refraction of light with the answer is also useful for upcoming exams.


 

If you find any difficulty in finding answers to Light Reflection and Refraction Class 10 Extra Questions then go through NCERT solutions of class 10 science or you can comment in the comment section, we will be very pleased to help you.

 

 

Light Reflection and Refraction Class 10 Extra Questions


CHAPTER- 10- LIGHT – REFLECTION AND REFRACTION 


1.    How can we see through a transparent medium?


2.    What is a ray of light?


3.    What is the diffraction of light?


4.    Which phenomena suggest light as a wave?


5.    Which theory has set the relationship between particle nature and wave nature of light?


6.    Write the properties of the image formed by a plane mirror.


7.    Write the laws of reflection of light. Write one use for each convex and concave mirror.[Annual exam-2011]


8.    Define the law of refraction of light. Draw a ray diagram for the formation of an image of an object situated at a point between 2f1 and f1 distance from the optical center of the following lenses. Write also the nature of the image formed-

i.    Convex lens

ii.  Concave lens [where - f1 -  focal length of the given lens]


9.    State Snell’s law for refraction of light.

 

10. Write the relation between object distance (u), image distance (v), and focal distance (f) of a spherical lens. What is magnification? 


11.  Write the relation between object distance (u), image distance (v), and focal distance (f) of a spherical mirror.


12.  Why is the height of the object taken to be positive?


13.  What is reflection?


14.  What is lateral inversion?


15.   What is a mirror? How many types of mirrors are found?


16.  Define the following terms related to mirror-

i.     Pole

ii.     Radius of curvature

iii.    Centre of curvature

iv.     Focus

v.      Focal length

vi.     Principal axis

vii.   Pole

viii. Aperture


17.   Draw the ray diagram of image formation by a concave mirror and give  position, size, and nature of image when an object is placed

i.    At infinity

ii.  Between infinity and C ( beyond C )

iii. At   C

iv. Between F and C

v.   Between P and F


18. Write down the laws of reflection?


19.  Draw the ray diagram of image formation by a convex  mirror and give  position, size, and nature of image when an object is placed

i.    at infinity

ii.   between infinity  and pole


20. Write down the uses of concave mirror?


21. Write down the uses of a convex mirror.


22. Name the mirror used  –

i.   In torches, searchlights, and vehicle headlights

ii.   As Shaving mirror

iii. To concentrate sunlight to produce heat is a solar furnace


23.  Name the mirror that can give an erect and enlarged image of an image.


24. What is the speed of light in a vacuum?


25. On what factor does the refractive index of give two media depend upon?


26. The refractive index of two materials are given below-

i.    Water =1.33

ii.  Kerosene  = 1.44

Tell which medium is optically denser and which one is optically rarer.


27. The refractive index of diamond is 2.42. What is the meaning of this statement?


28. What is optical density?


29. A ray of light traveling in the air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?


30. You are given refractive indexes of some materials. Tell in which of these the light travel does fastest.

i.     Kerosene  = 1.44

ii.   Benzene  = 1.50

iii.  Turpentine oil  = 1.47


31.  On what factor does the ability of a lens to converge or diverge light rays depend?


32. Explain the following-

i.  When light enters from a rarer medium to denser medium then how does the velocity and path of the light change?

ii.   What happens when light is incident normally to the interface of two media?


33.   Why do we prefer a convex mirror as a rearview mirror in vehicles?


34.   What is the sign convention for reflection by a spherical mirror? Draw the diagram also.


35.   Fine the focal length of a convex mirror whose radius of curvature is 32 cm.


36.    A concave mirror produces three times magnified real image of an object placed at 10cm in front of it. Where is the image located?


37. What is refraction?


38.  Write down the laws of refraction of light?


39.   What do you mean by refractive index?


40.  What is an absolute refractive index?


41.  Light enters from air to glass having a refractive index 1.50. What is the speed of light in the glass? The speed of light in a vacuum is 3 × 108 m/s.


42. What is lens? How many types of lens are there?


43. Define the following terms related to the lens-

i.    Radius of curvature

ii.  Centre of curvature

iii. Focus

iv.  Focal length

v.    Optical center

vi.   Principal axis


44.   Draw the ray diagram of image formation by convex lens and give position, size, and nature of image when an object is placed –

i.    At infinity

ii.  Between infinity and 2F1( beyond 2F1 )

iii.   At   2F1

iv.    Between F and 2F1

v.   Between O and F


45.  Draw the ray diagram of image formation by the concave lens and give  position, size, and nature of image when an object is placed

i.   At infinity

ii. Between infinity and O


46. Write down the lens formula?


47. What is the power of the lens?


48. Define the 1 diopter power of a lens?


49. Name the mirror that can give an erect and enlarged image of an object?


50. What is the focal length of the plane mirror?


51. When does a concave mirror forms a virtual image and erect image?


52.  What is the relation between focal length and radius of curvature?


53. The magnification produced by a plane mirror is +1. What does it mean?


54.  A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?


55. The refractive index of glass with respect to air is and the refractive index of water with respect to air is. If the speed of light in air is 3 ×108m/s, find the speed of light in (i) glass and (ii)water.[Annual exam-2013]


56. A concave mirror forms two times magnified and real image of an object placed at 15cm. from its pole. Determine the distance of the image from the mirror and the focal length of the mirror.[Annual exam-2013]


Related Topics

NCERT Solutions for Class 10 Science All Chapters below



 MCQ Questions for Class 10 Science PDf free download


         CBSE syllabus


Here you have been provided Online MCQ Quiz Test- Click the link below


MCQ Class 10 Science Chapter 1 Chemical Reactions and Equations Online Quiz- Set A

MCQ Class 10 Science Chapter 1 Chemical Reaction and Equations Online Quiz - Set B




Extra Questions Class 10 Science

Click the link given below-


1.    Chemical Reactions and Equations Extra Questions

2.    Acids.Bases and Salts Extra Questions

3.    Metals and Non-Metals Extra Questions

4. Carbon and its Compounds

5. Periodic Classification of Elements

6. Life Processes

7. Control and Coordination

8. How Do Organisms Reproduce 

9. Heredity and Evolution

10.Light- Reflection and Refraction

11. The Human Eye and The Colourful World

12. Electricity

13. Magnetic Effects of Electric Current

14. Sources of Energy 

15. Our Environment

16. Management of Natural Resources


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