MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Luminous Intensity

The intensity...

Question

The intensity of light at a distance $r$ from the axis of a long cylindrical source is inversely proportional to $r$ .

A

True

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

False

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A True
$I = \frac{I_{o}}{r} ∴ I \propto \frac{1}{r}$
Intensity is inversely proportional to $r$ .

Suggest Corrections

thumbs-up

0

Similar questions

Q. The intensity of light at a distance

r

from the axis of a long cylindrical source is proportional to :

Q. The intensity produced by a long cylindrical light source at a small distance

r

from the source is proportional to

Q. The intensity produced by a long cylindrical light source at a small distance r from the source is proportional to
(a)

\frac{1}{r^{2}}

\frac{1}{r^{3}}

\frac{1}{r}

(d) none of these

Q. The intensity of light due to a point light source is inversely proportional to the square of the distance from the source.
If the intensity of light due to a point light source is

16 W a t t s / m^{2}

at a distance of 3.0 m from the source, what is the intensity at a distance of 12.0 m from the source?

Q. The intensity of light due to a point light sources is inversely proportional to the square of the distance from the source.
If the intensity of light due to a point light source is

16 / W a t t s / m^{2}

at a distance of

3.0 m

from the source, what is the intensity at a distance of

12.0 m

from the source?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Fractions Form to Decimals Form

PHYSICS

Watch in App

explore_more_icon

Explore more

Luminous Intensity

Standard VIII Physics

Join BYJU'S Learning Program

CrossIcon