The one parameter that determines that b...

The one parameter that determines that brightness of a light source sensed by an eye is

A

energy of light entering the eye per second

B

wavelength of the light

C

total radiant flux entering the eye

D

total luminous flux entering the eye

Text Solution

Verified by Experts

The correct Answer is:

D

Doubtnut Promotions Banner Desktop Dark

Doubtnut Promotions Banner Mobile Dark

|

Topper's Solved these Questions

PHOTOMETRY
HC VERMA|Exercise Objective 2|4 Videos
PHOTOMETRY
HC VERMA|Exercise Exercises|16 Videos
PHOTOMETRY
HC VERMA|Exercise Short Answer|8 Videos
PHOTO ELECTRIC EFFECT AND WAVE PARTICLE DUALITY
HC VERMA|Exercise Exercise|2 Videos
SEMICONDUCTOR AND SEMICONDUCTOR DEVICES
HC VERMA|Exercise exercises|35 Videos

HC VERMA-PHOTOMETRY-Objective 1

The one parameter that determines that brightness of a light source se...
01:44
|
Three light sources A,B, and C emit equal amount of radiant energy per...
02:39
|
As the wavelength in increased form violet to red, the luminosity
01:56
|
An electric bulb is hanging over a table at a height of 1 m above it. ...
03:39
|
Light from a point source falls on a screen. If the separation between...
02:07
|
A battery operated tourch is adjusted to send and almost parallel beam...
01:35
|
The intensity produced by a long cylindrical light source at a small d...
Text Solution
|
A photographic plate placed at a distance of 5 cm from a weak point so...
Text Solution
|
A photographic plate is directly in fornt of as small diffused source ...
Text Solution
|
A point source of light moves ijn a straight line paralel to a plane t...
02:10
|
Figure shows a glowing mercury tube. The intensities at point A, B and...
01:52
|