### Light Reflection And Refraction Science Quiz For 10th Grade

Light is a form of energy and it always travels in the straight line that forms a shadow. When light travels from one medium to another medium, it does three things- some of it bounces off, some of it goes through, and the rest of it is absorbed. So in this quiz, we focused on two things first one when light bounces and it is called reflection and another one is light goes through the medium and it is called refraction. So take this interesting quiz and know more about light reflection and refraction.

#### 1. In which mirror, image is always virtual, erect, and at the same distance as to object?

 74888 Plane mirror 74889 Spherical mirror 74890 Concave mirror 74891 Convex mirror

#### 2. What is the SI unit of power of the lens?

 74892 Ampere 74893 Dioptere 74894 Watt 74895 Newton

#### 3. How many types of lenses?

 74896 4 74897 1 74898 2 74899 3

#### 4. The Centre of curvature is represented by...

 74900 Coc 74901 cc 74902 Cooc 74903 C

#### 5. How many laws of refraction?

 74904 4 74905 5 74906 1 74907 2

#### 6. Which one is the example of a medium?

 74908 Air 74909 Mirror 74910 Reflection 74911 Refraction

#### 7. What is the power of the concave lens?

 74912 Positive 74913 Negative 74914 Constant 74915 None of these

#### 8. What is the power of convex lens?

 74916 Negative 74917 Positive 74918 Constant 74919 All of the above

#### 9. The power of lens is the measure of the degree of....

 74920 Converging 74921 Diverging 74922 Convergence or Divergence 74923 None of these

#### 10. The principal focus is represented by....

 74924 F 74925 Pf 74926 Both of these 74927 None of these