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SAI INTERNATIONAL SCHOOL
                                                          Class8
                                                  Home Assignment
                                                   Subject-Physics
                                                        CH- Light
                                                Subtopic- Dispersion


               INSTRUCTIONS:
                    For Assertion& Reason question follow the following directions.
                 DIRECTION: Each of these questions contains an Assertion followed by Reason. Read them
                 carefully and answer the question on the basis of following options. You have to select the one that
                 best describes the two statements.
                 (a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
                 (b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
                 (c) If Assertion is correct but Reason is incorrect.
                 (d) If Assertion is incorrect but Reason is correct.
                 (e) If Assertion & Reason both are incorrect.
                 1.     Assertion: The splitting of white light into its constituent colours while passing    1
                        through a prism is called dispersion.
                        Reason: Different colours of light travel with different speeds in a glass prism
                   2.   Assertion: Rainbow is the example of dispersion of sunlight in nature.                1
                        Reason: Rainbow is visible in the wet atmosphere, when the back of the
                        observer is towards the sun.
               Fill in the blanks
                   3.   The band of seven colours produced due to dispersion is called                        1
                        ____________.


                   4.   The phenomenon occurring in nature due to dispersion of light is called 1
                        ________.


                   5.   _________ colour suffers minimum deviation while passing through a glass              1
                        prism.
               MCQ
                   6.   The splitting of white light into its constituent colours is called                   1
                            a) Refraction.
                            b) Dispersion.
                            c) Deviation.
                            d) Displacement.
                   7.   Which of the following colours bend the most in dispersion of white light ?           1
                           a) Red
                           b) Orange
                           c) violet
                           d) Blue
                   8.   Draw a labeled diagram showing dispersion of light from a glass prism.                2
                   9.   What is spectrum?                                                                     1
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