Question

describe an experiment to show that sin I /
sin R is equals to constant chapter light lab activity 1​

Answer 1

please send me the picture of the sum

Answer 2

Explanation:

• Take a wooden plank which is covered with white chart.  
• Draw two perpendicular lines, passing through the middle of the paper

• Let the intersecting point be O.  
• Mark one lines as NN which is normal to the another like marked as MM.  Here MM represents the line drawn along the interface of two media and NN represents the normal drawn to this line at 'O'.  

• Take a protractor and place it along NN in such a way that its centre coincides with 'O'.
• Then mark the angles from 0° to 90° on both sides of the line NN.  
• Repeat the same on the other side of the line NN.  

• The angles should be represented on circular line.  
• Now place a semi-circular glass disc so that its diameter coincides with the interface line (MM) and its centre coincides with the point O.  

• Take the laser light and send it along NN in such a way that the laser propagates from air to glass through the interface at point O and observe the way of laser light coming from other side of disc.  
• There is no deviation.  

• Send laser light along a line which marks 15⁰ with NN. Measure its corresponding angle of refraction.

• Measure its corresponding angle of refraction.  

• Repeat the experiment with angle of incidences of 20°, 30°, 40°, 50° and 60° and note the corresponding angles of refraction.