What are TRUE about the resolution of a light microscope? Select all the apply.

Question

BlackTom AI · Accepted Answer

Question restatement: What statements are TRUE about the resolution of a light microscope? Select all that apply.

Options:
- It is related to the numerical aperture of the eyepiece.
- It can be improved by moving to longer wavelengths.
- It is the ability to differentiate two distinct points very close to each other.
- It is limited by light diffraction.

Analysis of each option:
- Option: It is related to the numerical aperture of the eyepiece.
  This is not correct. Resolution in light microscopy is primarily determined by the numerical aperture of the objective lens (which collects light) and the wavelength of light used. The eyepiece contributes largely to magnification and viewing comfort, not to the fundamental resolution limit. Misconception here conflates eyepiece properties with optical resolving power.

- Option: It can be improved by moving to longer wavelengths.
  This is false. According to the diffraction limit, resolution improves with shorter wavelengths of light. Using longer wavelengths would increase the minimum resolvable distance, making it worse, not better. The inverse relationship between wavelength and resolution is well established in optical theory.

- Option: It is the ability to differentiate two distinct points very close to each other.
  This statement is true. A key definition of resolution in microscopy is the smallest distance at which two points can be distinctly perceived as separate. This directly reflects the resolving power of the instrument.

- Option: It is limited by light diffraction.
  This statement is true. The diffraction of light sets the fundamental limit to resolution in a conventional light microscope, described by criteria such as the Abbe limit, which ties resolution to wavelength and numerical aperture. Diffraction is the core physical constraint.

Putting it together, the true statements are those that identify resolution as (a) the ability to distinguish two close points, and (b) as limited by diffraction. The other two options misattribute factors or suggest incorrect wavelength dependence. The explanations above align with standard optical principle about resolution limits and what components influence them.

What are TRUE about the resolution of a light microscope? Select all the apply. 多项选择题

类似问题

You own a bond that pays $64 in interest annually. The face value is $1,000 and the current market price is $1,021.61. The bond matures in 11 years. What is the yield to maturity?

Which of the following statements is CORRECT?

It will cost $9,600 to acquire an ice cream cart that is expected to produce cash inflows of $3,600 a year for three years. After the three years, the cart is expected to be worthless. What is the payback period?

A 3.25 percent Treasury bond is quoted at a price of 99.04. The bond pays interest semiannually. What is the current yield?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单