Total flux produced by a source of 1 cd ...

Total flux produced by a source of `1 cd ` is

`(1)/(4pi)`

`8 pi`

`4pi`

`(1)/(8pi)`

Text Solution

Verified by Experts

The correct Answer is:

Luminous intensity
`L=(varphi)/(4pi)implies1=(varphi)/(4pi)implies varphi =4p`

Topper's Solved these Questions

GEOMETRICAL OPTICS
A2Z|Exercise Assertion Reason|15 Videos
GEOMETRICAL OPTICS
A2Z|Exercise Section D - Chapter End Test|30 Videos
GEOMETRICAL OPTICS
A2Z|Exercise Section B - Assertion Reasoning|19 Videos
ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM
A2Z|Exercise Section D - Chapter End Test|30 Videos
MAGNETISM AND MATTER
A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

Which instrument is used to measure the intensity of light produced by an unknown source in terms of a standard source?

The luminous flux of a monochromatic source of 1 W is 450 lumen watt^-1 . Find the relative luminosity at the wavelength emitted.

An electric current can he induced in a coil by flux change produced by another coil in its vicinity or flux change produced by the same coil. In both cases, the flux through a coil is

How are compressions and rarefactions produced near a source of sound ?

The intensity ratio of the maxima and minima in an interference pattern produced by two coherent sources of light is 9:1. The intensities of the used light sources are in ratio

A current carrying circular loop is located in a uniform external magnetic field. If the loop if free to turn, what is its orientation of stable equilibrium? Show that in this orientation, the flux of the total field (external field + field produced by the loop) is maximum.

At what distance form a light source of 64 cd, will the intensity of illumination because 4 flux ?

Statement-1 : Beats cannot be produced by light sources. Statement-2: Light sources have constant phase difference

A2Z-GEOMETRICAL OPTICS-AIPMT/NEET Questions

For a prism of refractive index 1.732, the angle of minimum deviation ...
Text Solution
|
Four lenses of focal length +15 cm , +20 cm, +150 cm and +250cm are av...
Text Solution
|
Total flux produced by a source of 1 cd is
Text Solution
|
Light wave enters from medium 1 to medium 2. Its velocity in 2^(nd) m...
Text Solution
|
An object is at a distance of 0.5m in front of a plane mirrorr. Distan...
Text Solution
|
If the speed of light in vacuum is C m//sec, then the velocity of ligh...
Text Solution
|
A person uses a lens of power +3D to normalise vision. Near point of h...
Text Solution
|
A small air bubble in a sphere of glass with radius 4 cm appears to be...
Text Solution
|
A convex lens is dipped in a liquid whose refractive index is equal to...
Text Solution
|
An equiconvex lens is cut into two halves along (i) XOX^(') and (ii) Y...
Text Solution
|
The sun makes 0.5^(@) angle on earth surface. Its image is made by con...
Text Solution
|
The chromatic aberration in lenses is due to
Text Solution
|
A glass prism has refractive index sqrt(2) and refracting angle 30^(@...
Text Solution
|
A beam of light composed of red and green ray is incident obliquely at...
Text Solution
|
A telescope has an objective lens of 10cm diameter and is situated at ...
Text Solution
|
A short linear object of length b lies along the axis of a concave mir...
Text Solution
|
A person who can see things most clearly at a distance of 10 cm. Requi...
Text Solution
|
A transparent cube of 15 cm edge contains a small air bubble. Its appa...
Text Solution
|
The refractive indices of the material of the prism and liquid are 1.5...
Text Solution
|
The angular resolution of a 10cm diameter telescope at a wavelength 50...
Text Solution
|