What happens to the magnifying power of microscope, when its length increases?a)May increase or decrease depending on the relative focal lengths of objective and eye piece.b)decreasesc)Unchangedd)IncreasesCorrect answer is option 'D'. Can you explain this answer?

Question

What happens to the magnifying power of microscope, when its length increases?&#8203;a)May increase or decrease depending on the relative focal lengths of objective and eye piece.b)decreasesc)Unchangedd)IncreasesCorrect answer is option 'D'. Can you explain this answer?

Answer

Magnification in microscope is m=− lD/f₀f_e
where, l is length of tube and D is least distance for clear vision
f₀ is focal length of objective
fe is the focal length of the eyepiece.
So, as l increases m increases.
Hence, the magnifying power of a microscope increases with increase in tube length.

Answer

In question they are asking for microscope... not telescope then how you are using this formula

Answer

Answer is (B) decreases
explosion
When length of microscope tube increase, magnifying power get decreased.

Answer

Correct answer is c

Answer

Introduction:
The magnifying power of a microscope is a measure of its ability to enlarge the image of the object being observed. It is determined by the combined magnification of the objective lens and the eyepiece. The magnification of the objective lens depends on its focal length, while the magnification of the eyepiece is determined by its focal length.

Explanation:
When the length of a microscope increases, it refers to the distance between the objective lens and the eyepiece. This distance affects the overall magnifying power of the microscope.

Factors affecting the magnifying power:
The magnifying power of a microscope depends on the relative focal lengths of the objective and eyepiece lenses.

- Objective lens: The objective lens is responsible for gathering and magnifying the light from the specimen. Its magnification is determined by its focal length. A shorter focal length results in a higher magnification power, while a longer focal length results in a lower magnification power.

- Eyepiece lens: The eyepiece lens further magnifies the image formed by the objective lens. Its magnification is also determined by its focal length. A shorter focal length results in a higher magnification power, while a longer focal length results in a lower magnification power.

Effect of length increase:
When the length of the microscope increases, it changes the distance between the objective lens and the eyepiece. This change in distance affects the relative focal lengths of the lenses, which in turn affects the magnifying power of the microscope.

If the objective lens has a shorter focal length than the eyepiece lens, then increasing the length of the microscope would increase the magnifying power. This is because the increased distance between the lenses allows for a larger magnification of the image formed by the objective lens, resulting in an overall higher magnification.

However, if the objective lens has a longer focal length than the eyepiece lens, then increasing the length of the microscope would decrease the magnifying power. This is because the increased distance between the lenses reduces the magnification of the image formed by the objective lens, resulting in an overall lower magnification.

Conclusion:
Therefore, the magnifying power of a microscope may increase or decrease depending on the relative focal lengths of the objective and eyepiece lenses when the length of the microscope increases.

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