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a light ray of yellow colour is incident on a equilateral glass prism and angle of incidence equal to 48 degree and suffers minimum deviation and angle of 36 degree what will be the angle of emergence if the angle of incidence is changed to a.30 degrees B 60° state in each case whether the angle of deviation will be equal to listen or more than 36 degree |
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Answer» rgence angle is 48°.(I). The angle of deviation will be less than 36°.(II). The angle of deviation will be more than 36°.Explanation:GIVEN that,INCIDENT angle = 48°Deviation angle = 36°Prism is equilateral.So, angle is 60°We need to calculate the angle of emergenceUsing formula of emergence angleWhere, = INCIDENCE angle = deviation anglePut the VALUE into the formulaThe emergence angle is 48°.(B). If the angle of incidence is changed (I). Incidence angle is 30°We need to deviation angleUsing formula of deviationPut the value into the formulaThe angle of deviation will be less than 36°.(II). Incidence angle is 60°We need to deviation angleUsing formula of deviationPut the value into the formulaThe angle of deviation will be more than 36°.Hence, The emergence angle is 48°.(I). The angle of deviation will be less than 36°.(II). The angle of deviation will be more than 36°.Learn more :Topic : emergence anglebrainly.in/question/1183522 |
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