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Speed of light in a vacuum is approximately equal to _____.

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Important Questions on Physics

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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 7 - Physics>Exam Pattern Questions>Q 78
We see the color of grass as green because _____.
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 7 - Physics>Exam Pattern Questions>Q 79
Rainbow formation is due to_____.
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 7 - Physics>Exam Pattern Questions>Q 80
The phenomenon of light associated with the appearance of blue colour of the sky is _____.
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 7 - Physics>Exam Pattern Questions>Q 81
When a strong beam of light is passed through a colloidal solution, the light will _____.
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 7 - Physics>Exam Pattern Questions>Q 82

Optical fibers are based on the phenomenon of _____.

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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 7 - Physics>Exam Pattern Questions>Q 83
Which of the following coloured light has the lowest frequency?
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 7 - Physics>Exam Pattern Questions>Q 84
Convex mirrors are used as a rear view mirror in motor cycles because: 
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 7 - Physics>Exam Pattern Questions>Q 85
Persons suffering from myopia are advised to use _____.