$angle of reflection vs angle of refraction$

$angle of reflection vs angle of refraction$

(E) describe and predict image formation as a consequence of reflection from a plane mirror and refraction through a thin convex lens and.(D) investigate behaviors of waves, including reflection, refraction, diffraction, interference, resonance, and the Doppler effect.The student knows the characteristics and behavior of waves. doing the experiment in a dark room so that the emergent ray can be easily seen and marked.The learning objectives in this section help your students master the following standards:.ensuring that the power pack is set to 12 V, so that the ray box is at maximum brightness.replacing the block carefully on its outline.The main cause of error in this experiment is the measurement of the angles of incidence and refraction. Repeat the procedure for each of the incident rays, recording angle of incidence and corresponding angle of refraction in the table.Įnsure environment is clear of potential trip hazards before lowering lights.

$angle of reflection vs angle of refraction$

Measure the angle of refraction with a protractor and record in the table. Carefully mark in the angle of refraction, r, between the refracted ray and the normal. Use the ruler to join the incident and emergent rays together with a pencil line.Join the Xs with a pencil line, drawn using a ruler. With the pencil mark two Xs to indicate the direction of the emergent ray.This is the incident ray for the angle of incidence, i = 10 0. Direct a narrow ray of light along the line marked A. Carefully replace the block on the outline.Record these angles of incidence in a suitable table. Draw in the incident rays corresponding to these angles and label them A, B, C. Use a protractor to measure angles of incidence from this normal of 10 0, 20 0, 30 0, 40 0, 50 0, 60 0 and 70 0.Use the protractor to draw a normal approximately 1/3 of the way along the longest side. Place the rectangular glass block on a sheet of white paper and draw around it carefully with a pencil.Set up the ray box and slit so that a narrow, bright ray of light is produced.Low voltage power pack, a 12V ray box, a single slit comb, a rectangular glass block, a sheet of white paper, a protractor, a sharp pencil. However, as the angle of incidence increases the refracted light will bend from a bigger initial angle, and so the angle of refraction will also be bigger. Light is travelling from air to glass and so is refracted towards the normal. Remember - these variables are controlled (or kept the same) because to make it a fair test, only 1 variable can be changed, which in this case is the angle of incidence. Independent Variable is the angle of incidence.ĭependent Variable is the angle of refraction.Ĭontrol Variables are the material of the block, the shape of the block and the colour of the light. observe and use a protractor to measure angles of refraction.make, measure and record the angles of incidence accurately using a protractor.In this required practical activity, it is important to: There are different ways to investigate refraction in rectangular blocks. and to use the measurements taken to plot a graph of angle of incidence against angle of refraction to show that they are related but not proportional.To demonstrate understanding that the angles of incidence and refraction are measured from a line at right angles to the glass surface known as the normal.

$angle of reflection vs angle of refraction$

To use ray tracing to measure the angles of incidence and refraction when light is refracted by a glass block.

A guide to carrying out a practical investigating angles of incidence and refraction

$angle of reflection vs angle of refraction$

Angle of reflection vs angle of refraction