Question:

How is image formation in the eye different from that in a photographic camera

A.

no difference

B.

variable focal length

C.

varying distance between lens and imaging plane

D.

fixed focal length

Answer» b. variable focal length

Question:

The inner most membrane of the human eye is

A.

blind spot

B.

sclera

C.

choroid

D.

retina

Answer» d. retina

Question:

In the Visible spectrum the ______ colour has the maximum wavelength.

A.

violet

B.

blue

C.

red

D.

yellow

Answer» c. red

Question:

The absence of receptors is in the retinal area called _____________

A.

lens

B.

ciliary body

C.

blind spot

D.

fovea

Answer» c. blind spot

Question:

What is subjective brightness?

A.

related to intensity

B.

related to brightness

C.

related to image perception

D.

related to image formation

Answer» a. related to intensity

Question:

What is the function of Iris?

A.

source of nutrition

B.

detect color

C.

varies focal length

D.

control amount of light

Answer» d. control amount of light

Question:

CAT in imaging stands for

A.

computer aided telegraphy

B.

computer aided tomography

C.

computerised axial telegraphy

D.

computerised axial tomography

Answer» d. computerised axial tomography

Question:

What do you mean by achromatic light?

A.

chromatic light

B.

monochromatic light

C.

infrared light

D.

invisible light

Answer» b. monochromatic light

Question:

The most familiar single sensor used for Image Acquisition is

A.

microdensitometer

B.

photodiode

C.

cmos

D.

none of the mentioned

Answer» b. photodiode

Question:

Which of the following is used for chest and dental scans?

A.

hard x-rays

B.

soft x-rays

C.

radio waves

D.

infrared rays

Answer» b. soft x-rays