Question

objective lens
type: scanning, low, high
ocular magnification
objective magnification
total magnification

Explanation:

To complete the table for microscope objective lens magnification (a common topic in Natural Science - Biology/Physics), we use the formula for total magnification:

Step 1: Recall Total Magnification Formula

Total magnification (\( M_{\text{total}} \)) is the product of the ocular (eyepiece) magnification (\( M_{\text{ocular}} \)) and the objective lens magnification (\( M_{\text{objective}} \)):
$$ M_{\text{total}} = M_{\text{ocular}} \times M_{\text{objective}} $$

Step 2: Typical Ocular Magnification

Most microscopes have an ocular magnification of \( \boldsymbol{10\times} \) (standard for educational/ lab microscopes).

Step 3: Objective Lens Magnifications

• Scanning Objective: Typically \( \boldsymbol{4\times} \) (low power, wide field of view).
• Low - Power Objective: Typically \( \boldsymbol{10\times} \) (common low - power lens).
• High - Power Objective: Typically \( \boldsymbol{40\times} \) (or \( 100\times \) for oil immersion, but \( 40\times \) is common for high - dry).

Step 4: Calculate Total Magnification

For each objective:

• Scanning (\( 4\times \)): \( M_{\text{total}} = 10\times \times 4\times = 40\times \)
• Low (\( 10\times \)): \( M_{\text{total}} = 10\times \times 10\times = 100\times \)
• High (\( 40\times \)): \( M_{\text{total}} = 10\times \times 40\times = 400\times \) (or \( 1000\times \) for \( 100\times \) objective with oil immersion)

Filling the Table (assuming ocular = \( 10\times \)):

Objective Lens Type	Ocular Magnification	Objective Magnification	Total Magnification
Low	\( 10\times \)	\( 10\times \)	\( 100\times \)
High	\( 10\times \)	\( 40\times \)	\( 400\times \)

(Note: If the ocular magnification differs (e.g., \( 5\times \), \( 15\times \)), adjust the total magnification accordingly using \( M_{\text{total}} = M_{\text{ocular}} \times M_{\text{objective}} \).)

Answer:

Step 1: Recall Total Magnification Formula

Total magnification (\( M_{\text{total}} \)) is the product of the ocular (eyepiece) magnification (\( M_{\text{ocular}} \)) and the objective lens magnification (\( M_{\text{objective}} \)):
$$ M_{\text{total}} = M_{\text{ocular}} \times M_{\text{objective}} $$

Step 2: Typical Ocular Magnification

Most microscopes have an ocular magnification of \( \boldsymbol{10\times} \) (standard for educational/ lab microscopes).

Step 3: Objective Lens Magnifications

• Scanning Objective: Typically \( \boldsymbol{4\times} \) (low power, wide field of view).
• Low - Power Objective: Typically \( \boldsymbol{10\times} \) (common low - power lens).
• High - Power Objective: Typically \( \boldsymbol{40\times} \) (or \( 100\times \) for oil immersion, but \( 40\times \) is common for high - dry).

Step 4: Calculate Total Magnification

For each objective:

• Scanning (\( 4\times \)): \( M_{\text{total}} = 10\times \times 4\times = 40\times \)
• Low (\( 10\times \)): \( M_{\text{total}} = 10\times \times 10\times = 100\times \)
• High (\( 40\times \)): \( M_{\text{total}} = 10\times \times 40\times = 400\times \) (or \( 1000\times \) for \( 100\times \) objective with oil immersion)

Filling the Table (assuming ocular = \( 10\times \)):

Objective Lens Type	Ocular Magnification	Objective Magnification	Total Magnification
Low	\( 10\times \)	\( 10\times \)	\( 100\times \)
High	\( 10\times \)	\( 40\times \)	\( 400\times \)

(Note: If the ocular magnification differs (e.g., \( 5\times \), \( 15\times \)), adjust the total magnification accordingly using \( M_{\text{total}} = M_{\text{ocular}} \times M_{\text{objective}} \).)