Question:

________ serve to a general, overall picture of the field of view.

A.

cones

B.

rods

C.

retina

D.

all of the mentioned

Answer» b. rods

Question:

How is radiance measured?

A.

lumens

B.

watts

C.

armstrong

D.

hertz

Answer» b. watts

Question:

Of the following, _________ has the maximum frequency.

A.

uv rays

B.

gamma rays

C.

microwaves

D.

radio waves

Answer» b. gamma rays

Question:

A geometry consisting of in-line arrangement of sensors for image acquisition

A.

a photodiode

B.

sensor strips

C.

sensor arrays

D.

cmos

Answer» b. sensor strips

Question:

Wavelength and frequency are related as : (c = speed of light)

A.

c = wavelength / frequency

B.

frequency = wavelength / c

C.

wavelength = c * frequency

D.

c = wavelength * frequency

Answer» d. c = wavelength * frequency

Question:

Which of the following embodies the achromatic notion of intensity?

A.

luminance

B.

brightness

C.

frequency

D.

radiance

Answer» b. brightness

Question:

Electromagnetic waves can be visualised as a

A.

sine wave

B.

cosine wave

C.

tangential wave

D.

none of the above

Answer» a. sine wave

Question:

Which of the following is a receptor in the retina of human eye?

A.

rods

B.

cones

C.

rods and cones

D.

neither rods nor cones

Answer» c. rods and cones

Question:

Ratio of number of rods to the number of cones is _______

A.

1:20

B.

1:2

C.

1:1

D.

1:5

Answer» a. 1:20

Question:

Massless particle containing a certain amount of energy is called

A.

photon

B.

shell

C.

electron

D.

none of these

Answer» a. photon