I have showed my answers which received a 1/5 can someone please help with the a
ID: 1697624 • Letter: I
Question
I have showed my answers which received a 1/5 can someone please help with the answers, and you will recieve a life saver.
1.The surface normal, which helps define the angles in the Law of Reflection and the Law of Refraction, is an imaginary line perpendicular to the surface at the point where the incident ray strikes the surface.
T of F?
Student Response
True
2.The Law of Reflection can be used to show how an image appears behind a mirror and it can also be used to determine where the image will be located. T or F?
Student Response
False
3.The figure below is from the lab manual Prelab Question 1 at the end of the writeup. Although it will not be graded, perform the derivation described there anyway. When looking down from nearly straight overhead which of the following are true:
A. Only the object is visible.
B. Only the image is visible.
C. Both the object and the image are visible.
D. The image point I is at h'=h/n
E. The image point I is at h'=n h
Student Response 3. C, D
4.The figure below is from Prelab Question 2 in the manual. Perform the derivation described there and state which of the following expressions gives the length of the ray inside the block:
1) d sin
2) d/sin
3) L cos 2
4) L/cos 2
A. 1. and 3.
B. 1. and 4.
C. 2. and 3.
D. 2. and 4.
Student response B 1. and 4.
5.The figure below is from Prelab Question 3 at the end of the writeup for this experiment. Although it will not be graded, perform the derivation described there and then state which of the following statements and equations are correct.
(1) 2=30o.
(2) =(1-2)/2.
(3) Triangle aec is an equilateral triangle.
Student Response E. 1 and 3
1. A, D 2. B, D 3. C, D 4. A, E 5. B, E 6. C,Explanation / Answer
(4) Let us consider 'x' be the length of the ray inside the block. From the given figure in the problem (4), sina = d / x x = d /sina In the same way, cos ?2 = L /x x = L / cos?2 So the correct option is (D) Please ask the questions separately