Lasers and Optical Devices MCQs with Answers

adminJune 12, 2024

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Welcome to the Lasers and Optical Devices MCQs with Answers. In this post, we have shared Lasers and Optical Devices Online Test for different competitive exams. Find practice Lasers and Optical Devices Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Lasers and Optical Devices.

Lasers and Optical Devices Online Quiz

By presenting 3 options to choose from, Lasers and Optical Devices Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Lasers and Optical Devices Questions and Answers and click over the correct answer.

Test Name: Lasers and Optical Devices MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Lasers and Optical Devices

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1 / 40

What is the primary function of an optical coupler?

Combining optical signals

Amplifying light

Splitting optical signals

2 / 40

What is the active medium in a helium-neon laser?

Semiconductor material

Solid-state crystal

Helium and neon gas

3 / 40

Which optical device is used to separate different wavelengths of light?

Diffraction grating

Optical filter

Beam splitter

4 / 40

What is the primary function of an optical switch?

Routing optical signals

Modulating light

Amplifying light

5 / 40

What is the active medium in a dye laser?

Solid-state crystal

Organic dye molecules

Semiconductor material

6 / 40

What is the primary function of an optical isolator?

Preventing back reflections

Amplifying light

Modulating light

7 / 40

What is the active medium in a tunable laser?

Dye molecules

Solid-state crystal

Semiconductor material

8 / 40

What is the active medium in an excimer laser?

Rare gas and halide molecules

Semiconductor material

Solid-state crystal

9 / 40

What is the primary function of a laser resonator?

Amplify light

Provide optical feedback

Generate light

10 / 40

What type of gain medium is commonly used in solid-state lasers?

Liquid

Gas

Crystal

11 / 40

Which type of laser is commonly used in spectroscopy for analyzing chemical compounds?

Tunable laser

CO2 laser

Semiconductor laser

12 / 40

In a laser, what process is responsible for the emission of coherent light?

Stimulated emission

Spontaneous emission

Absorption

13 / 40

Which of the following is NOT a property of laser light?

Directionality

Incoherence

Monochromaticity

14 / 40

What is the active medium in a Nd

Semiconductor material

Gas

Neodymium-doped yttrium aluminum garnet

15 / 40

What is the primary function of a laser cavity?

Amplify light

Provide feedback

Generate light

16 / 40

What is the active medium in a fiber laser?

Semiconductor material

Gas

Optical fiber

17 / 40

What is the primary function of an optical amplifier?

Amplifying light

Modulating light

Detecting light

18 / 40

Which optical device is used to control the intensity of laser light?

Optical isolator

Optical amplifier

Optical attenuator

19 / 40

Which type of laser is commonly used in communication systems for optical signal amplification?

Fiber laser

Semiconductor laser

Helium-neon laser

20 / 40

What does the term "LASER" stand for?

Light Attenuation by Spontaneous Emission of Radiation

Light Absorption by Stimulated Emission of Radiation

Light Amplification by Stimulated Emission of Radiation

21 / 40

Which type of laser is commonly used in ophthalmology for vision correction surgeries?

Semiconductor laser

CO2 laser

Excimer laser

22 / 40

What is the active medium in a semiconductor laser?

Gas

Semiconductor material

Liquid

23 / 40

Which type of laser is commonly used in barcode scanners?

Semiconductor laser

Diode-pumped solid-state laser

Helium-neon laser

24 / 40

Which type of laser is commonly used in military applications for target designation and rangefinding?

Semiconductor laser

CO2 laser

25 / 40

What is the function of the Q-switch in a pulsed laser?

Filtering light

Amplifying light

Controlling pulse duration

26 / 40

What is the primary advantage of using a fiber laser over other types of lasers?

Long coherence length

High efficiency

Compact size

27 / 40

What is the typical wavelength range of a diode laser?

Near-infrared

Visible

Ultraviolet

28 / 40

Which type of laser is commonly used in DVD players?

Semiconductor laser

CO2 laser

Helium-neon laser

29 / 40

Which of the following is NOT a type of laser gain medium?

Liquid

Gas

Metal

30 / 40

What is the primary function of an optical modulator?

Modulating light

Amplifying light

Filtering light

31 / 40

What is the most common method for pumping solid-state lasers?

Gas discharge

Flashlamp

Diode

32 / 40

What is the typical wavelength range of an excimer laser?

Ultraviolet

Visible

Near-infrared

33 / 40

What is the primary function of a laser beam profiler?

Amplifying light

Characterizing beam properties

Modulating light

34 / 40

Which type of laser is commonly used in military applications for target designation and rang finding?

DPSS lasers

CO2 laser

Semiconductor laser

35 / 40

Which type of laser is commonly used in communication systems for optical signal amplification?

Semiconductor laser

Helium-neon laser

Fiber laser

36 / 40

What is the active medium in a CO2 laser?

Semiconductor material

Solid-state crystal

Carbon dioxide gas

37 / 40

What is the primary function of a laser diode?

Amplifying light

Emitting coherent light

Detecting light

38 / 40

Which type of laser is commonly used in medical procedures for cutting and cauterizing tissue?

Dye laser

CO2 laser

Excimer laser

39 / 40

What is the primary function of a laser rangefinder?

Filtering light

Measuring distance

Modulating light

40 / 40

What is the primary function of an optical detector?

Detecting light

Modulating light

Amplifying light

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adminJune 12, 2024

0 21 1 minute read