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Questions and Answers
What is the relationship between Xm (cm) and L (cm) in the given experiment?
What is the relationship between Xm (cm) and L (cm) in the given experiment?
- Xm (cm) and L (cm) are independent of each other
- Xm (cm) decreases as L (cm) increases
- Xm (cm) increases as L (cm) increases
- Xm (cm) and L (cm) have a linear relationship (correct)
What is the slope of the relationship between Xm (cm) and L (cm)?
What is the slope of the relationship between Xm (cm) and L (cm)?
- Cannot be determined
- Positive (correct)
- Negative
- Zero
What is the wavelength (λ) in the given experiment?
What is the wavelength (λ) in the given experiment?
- 0.00002 cm
- 190 cm
- 0.00106 cm (correct)
- Cannot be determined from the given information
What is the value of sinθ in the given experiment?
What is the value of sinθ in the given experiment?
What does a laser emit?
What does a laser emit?
What happens to the waves of light when a small object obstructs them?
What happens to the waves of light when a small object obstructs them?
Which type of laser is classified as Optically Pumped Solid-State Lasers?
Which type of laser is classified as Optically Pumped Solid-State Lasers?
What is the meaning of 'laser'?
What is the meaning of 'laser'?
Which type of medical laser has a strong emission?
Which type of medical laser has a strong emission?
What type of beam does laser light produce?
What type of beam does laser light produce?
What does the order of diffraction 'm' represent in the given context?
What does the order of diffraction 'm' represent in the given context?
What does 'coherent light' mean?
What does 'coherent light' mean?
How is laser light described in terms of directionality?
How is laser light described in terms of directionality?
What is the purpose of using a slit in laser diffraction experiments?
What is the purpose of using a slit in laser diffraction experiments?
Study Notes
Laser Properties and Behavior
- The relationship between Xm (cm) and L (cm) in the given experiment is proportional, indicating a direct relationship between the two variables.
Diffraction and Interference
- The slope of the relationship between Xm (cm) and L (cm) represents the wavelength (λ) of the laser light, which can be calculated from the experiment.
- The order of diffraction 'm' represents the number of bright fringes or maxima occurring between two consecutive nodal lines in the diffraction pattern.
Laser Characteristics
- Laser light is a type of coherent light, meaning it has a fixed phase relationship between its constituent waves.
- Laser light produces a narrow, directional beam with low divergence, making it highly focused.
- Lasers emit coherent light of a specific wavelength, which can be used in various applications.
Laser Type and Application
- One type of laser is classified as Optically Pumped Solid-State Lasers.
- The 'laser' acronym stands for Light Amplification by Stimulated Emission of Radiation.
- Some medical lasers, like CO2 lasers, have a strong emission and are used in surgical procedures.
Obstruction and Diffraction
- When a small object obstructs light waves, it causes diffraction, which is the bending of light around the object.
- In laser diffraction experiments, a slit is used to create a narrow beam of light, allowing for more accurate measurements of diffraction patterns.
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By Ahmed Safaa Telegram channel : https://t.me/mcqb2
