Parts of a light microscope

What is the correct way to lift up the light microscope?

• Carry with both hands holding the arm.

• Carry with both hands on the base.

• Hold the arm with one hand only.

• Use one hand to hold the arm, and another hand to support the base from below.

What is the total magnification of a specimen viewed using the 4x objective lens?

• 4x

• 40x

• 400x

Which statement about coarse fine adjustment knob is correct?

• It can be used to focus the image at all magnifications.

• It is used to focus the image when the 40x objective lens is used.

• It moves the stage up and down for focusing.

• It sharpens the image only slightly when turned.

Which part of the light microscope do you look into to view the specimen?

• arm

• body tube

• eyepiece

• light source

What is the function of the stage?

• To adjust the distance between the specimen and objective lens

• To hold the glass slide in place for viewing

• For placing the glass slide containing the specimen to be viewed

• For placing the specimen directly for viewing

Which is the correct way to position the eyepiece for viewing a specimen?

• 
• 

Which is the correct sequence for setting up the microscope for specimen viewing?

i. Lower the stage using the coarse adjustment knob

ii. Ensure the objective lens is at 4x magnification

iii. Place the microscope slide on the stage and secure using stage clip.

• i, ii, iii

• ii, i, iii

• iii, i, ii

• iii, ii, i

Which is the correct sequence of steps for returning of the the microscope after specimen viewing?

i. Remove the microscope slide from the stage.

ii. Ensure the objective lens is at 4x magnification

iii. Lower the stage halfway using the coarse adjustment knob

iv. Coil the wire around the arm, in between the stage and light source.

v. Turn off the power on both the microscope and the main power socket.

• ii, iii, i, v, iv

• i, ii, iii, v, iv

• iii, i, ii, iv, v