What type of radiation does a Ga-As laser emit?
Anonymous Quiz
13%
Red visible radiation
7%
Blue visible radiation
4%
Ultraviolet radiation
75%
Infrared radiation
What is the depth of penetration for a Ga-As laser before it loses 37% of its intensity?
Anonymous Quiz
11%
Less than 0.5 mm
15%
1 - 2 cm
74%
Greater than 2 mm
Which laser type is used to achieve deeper tissue penetration?
Anonymous Quiz
1%
Both have the same penetration depth
20%
Helium neon laser
78%
Semiconductor diode laser (Ga-As)
What is the role of the lasing medium in a laser unit?
Anonymous Quiz
24%
To reflect the laser light
59%
To generate the laser light
16%
To absorb the laser light
1%
To cool the laser unit
What type of lasing medium can be used to generate laser light?
Anonymous Quiz
0%
Solid
5%
semiconductor
8%
gas
86%
All of above
Which of the following is NOT a component of a laser unit mentioned in the image?
Anonymous Quiz
6%
Energy source
4%
Lasing medium
10%
Resonating cavity
80%
Cooling system
What is the significance of using a mirrored chamber in the resonating cavity?
Anonymous Quiz
13%
To increase the temperature of the laser unit
87%
To facilitate the amplification of the laser light
0%
To decrease the intensity of the laser light
Which component of the laser unit directly influences the wavelength of the emitted laser light?
Anonymous Quiz
7%
Cooling system
17%
Energy source
49%
Lasing medium
27%
Resonating cavity
Resonating cavity in laser contain to two fully reflective mirrors.
Anonymous Quiz
29%
True
71%
False
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Resonating cavity in laser contain to fully reflective mirror and partial mirror.
Anonymous Quiz
88%
True
12%
False
Which class of laser use in physiotherapy?
Anonymous Quiz
9%
Class 1
14%
Class 2
72%
Class 3
5%
Class 4
Which Relationship between Wavelength and pentration?
Anonymous Quiz
74%
Direct relationship
26%
Inverse Relationship
Physiological effect of laser:
Anonymous Quiz
0%
Reduce pain
7%
Increase nerve Conduction velocity
1%
Improve circulation
7%
Stimulate tissue healing
85%
All of bove
What is the primary difference between spontaneous emission and stimulated emission?
Anonymous Quiz
61%
Spontaneous emission occur without external influence, while stimulated emission requires an photon
11%
Both processes require an incoming photon
29%
Stimulated emission occurs without external influence, while spontaneous emission requires an photon
يعني مابطبّقش فالعادي طول مسيرتي التعليميه، تيجي الإيثيكس تعمل فيا كده؟
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فاضل 500صفحه وقدامي سبع دقايق هاخد كل ميه فدقيقه وآخر دقيقتين هحل وأراجع فيهم
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