Physics Laboratory Experiments

Jerry D. Wilson, Cecilia A. Hernandez-Hall

Chapter 30 Reflection and Refraction - all with Video Answers

Educators

Chapter Questions

08:38

Problem 1

(a) Why are two images seen in the glass plate when it is viewed from position 2 in Part A of the experiment? Why is only one image seen when it is viewed from position 1 ?
(b) Explain why reflection images are easily seen at night in a window pane from inside the house, whereas during the day they are not.

Khoobchandra Agrawal

Numerade Educator

02:19

Problem 2

Judging on the basis of your experimental data, draw conclusions about (a) the relationship of the distance of the object in front of a plane mirror and the distance of its image "behind" the mirror; and (b) the image magnification (that is, how much bigger the image is than the object).

Vishal Gupta

Numerade Educator

03:49

Problem 3

Explain the situation shown in Fig. $30.8$. How can this be done without hurting one's hand? (Hint: The fearless author's hand extends inside the sliding glass-windowed door of a laboratory cabinet.)

Allea Cauilan

Numerade Educator

01:18

Problem 4

Prove mathematically that when a plane mirror is rotated an angle $\theta$ about an axis through its center (Part A of the experiment), the angle of deflection $\phi$ of a light ray is equal to $2 \theta$. Draw a diagram and show the work involved in your proof. Attach an additional sheet, if necessary.

Mayukh Banik

Numerade Educator

02:36

Problem 5

Referring to the situation in Fig. $30.7$, show theoretically that ray $C^{\prime} C^{\prime \prime}$ is parallel to ray CR. Compute the displacement $d$ of the ray passing through the glass plate. Compare this with the measured experimental displacement.

Prabhu Ramji

Numerade Educator

01:44

Problem 6

Using the experimentally determined $n$ for the glass plate, compute the speed of light in the glass plate.

Vishal Gupta

Numerade Educator