Laws Of Reflection

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| By Fizikf4
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Fizikf4
Community Contributor
Quizzes Created: 1 | Total Attempts: 2,854
Questions: 9 | Attempts: 2,854

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Laws Of Reflection - Quiz

Simple quiz to test understanding of Laws of reflection.


Question 1 to 7 are based this diagram


Questions and Answers
  • 1. 

    What is line a ?

    • A.

      Incident ray

    • B.

      Reflected ray

    • C.

      Normal

    • D.

      Mirror

    Correct Answer
    A. Incident ray
    Explanation
    Incident ray is the incoming light ray.

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  • 2. 

    What is line b ?

    • A.

      Incident ray

    • B.

      Reflected ray

    • C.

      Normal

    • D.

      Mirror

    Correct Answer
    C. Normal
    Explanation
    The normal is an imaginary line perpendicular to the surface.

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  • 3. 

    What is line c ?

    • A.

      Incident ray

    • B.

      Reflected ray

    • C.

      Normal

    • D.

      Mirror

    Correct Answer
    B. Reflected ray
    Explanation
    Reflected ray is the light ray moving away from the surface .

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  • 4. 

    Which angle is angle of incidence ?

    • A.

      θ1

    • B.

      θ2

    • C.

      θ3

    • D.

      θ4

    Correct Answer
    B. θ2
    Explanation
    The angle of incidence, θi is measured between the incident ray and the normal.

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  • 5. 

    Which angle is angle of reflection ?

    • A.

      θ1

    • B.

      θ2

    • C.

      θ3

    • D.

      θ4

    Correct Answer
    C. θ3
    Explanation
    The angle of reflection, θr is measured between the reflected ray and the normal.

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  • 6. 

    If θ1 is 30o , the value of θ2  is ___o .

    Correct Answer
    60
    Explanation
    θ2 = 90 - θ1
    = 90 - 30
    = 60

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  • 7. 

    If θ1 is 50o, calculate angle of reflection .

    Correct Answer
    40
    Explanation
    angle if reflection is θ3 angle of reflection = angle of incidence = (90 -50)

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  • 8. 

    An apple is  5 m apart to the mirror, what is the image distance from the mirror ?Question 8 and 9 are based on this diagram.

    • A.

      Less that 5 m

    • B.

      5 m

    • C.

      More then 5 m

    Correct Answer
    B. 5 m
    Explanation
    the distance of the image from the plane mirror is the same as the distance of the object.

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  • 9. 

    A boy move the apple 2 m towards to the mirror, from 5m, what is the new distance of  image to the object ?

    • A.

      2 m

    • B.

      3 m

    • C.

      4 m

    • D.

      5 m

    • E.

      6 m

    Correct Answer
    E. 6 m
    Explanation
    distance of image to the object is (d + d') new d = 5-2 = 3 m d= d' = 3m therefore d+d' = 3+3 = 6m

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  • Current Version
  • Feb 04, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 23, 2009
    Quiz Created by
    Fizikf4
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