Download اختبار أعمال سنة ثاني 104 فيز إدارة أعمال

Second period exam (First term)
Time: 30 minutes:
Name:
Dr. Karam Abdel-Aty
………………………………………………………………..………
104 Phys (General Physics 2)
Division: 185
Date: 25/2/1436
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Question 1): Choose the correct answer:
(2 marks)
1) In the movies, you sometimes see an actor looking in a mirror and you can see his face in the mirror.
During the filming of this scene, what does the actor see in the mirror?
a) his face
b) the director’s face
d) the movie camera
e) impossible to determine
2) Light passes from a material with index of refraction 1.3 into one with index of refraction 1.2.
Compared to the incident ray, the refracted ray
(a) bends toward the normal
(b) is undeflected
3) Optical fiber is based on the phenomena of
(a) refraction
(b) electrostatics
4) The measurement units of Planck’s constant is
(a) J
(b) J.s
(c) bends away from the normal
(c) total internal reflection
(c) J/s
(d) has no units
Question 2) Which statement is true and which is false of the following:
(2 marks)
1) Newton is the chief architect of the wave theory of light.
2) Fizeau succeeded to measure the speed of light more accurately than Roemer.
(
(
3) The index of refraction varies with the wavelength of the light passing through a material.
4) The speed of light in any material is higher than its speed in vacuum.
Question 3): Complete the following sentences with the suitable words:
)
)
(
(
)
)
(2 marks)
(1) Huygens set up the ……………………… theory of light.
2) Sometimes light acts like a wave, and at other times it acts like a …………………...
3) The index of refraction of a medium is the ratio between speed of light in ………………. and speed
of light in medium.
4) ) Reflection from any rough surface is known as ………………………… reflection.
* Choose the suitable words from the following:
(particle – wave – vacuum – diffuse – Heat capacity)
Question 2): State the following laws:
(2 marks)
Snell's Law : ……………………………………………………………………………….…………………………………………………………………………………
…………………………………………………………………………………………………………………………………………………………………………………………...…
The law of reflection : …………………………………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………………………………………………………………………………
Question 4) Write the terms (only 6) in the following diagram:
1-
…………………………………………………………………………………………………………………………………….
2-
…………………………………………………………………………………………..….………….………………………….
3-
……………………………………………………………………………………….................................................................
4-
…………………………………………………………………………………………………………………….……………….
5-
.........................................................................................................................................................................................
6-
……………………………………………………………………………..………………………………………………………
7-
…………………………………………………………………………………………………………………………………...
8-
…………………………………………………………………………....……………………………………………………...
9-
…………………………………………………………………………………………………………………………………...
(3 marks)
3
5
1
n1
8
2 4
9
n2
6
10
7
10-
………………………………………………………………………………………………………………………………
Question 6: Solve the following problem:
(4 marks)
A light ray of wavelength 589 nm traveling through air (has refractive index = 1) is incident on a
smooth, flat slab of crown glass (with refractive index 1.53) at an angle of 30° to the normal. Find the
angle of refraction and then calculate the angle of deviation.
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With best wishes