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

Byju's Answer

Standard XII

Physics

Maxima & Minima in YDSE

A light of in...

Question

A light of intensity 10 passes through a material of thickness d, then the intensity will be.

l = l_{0} e^{- d λ}

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

l = l_{0} e^{d λ}

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

l = l_{0} (l - e^{- d λ})

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

None of these

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

Open in App

Solution

The correct option is A $l = l_{0} e^{- d λ}$
When a light passes through a material its intensity goes on decreasing. First equation given represents exponentially decreasing intensity. Option (b) and (c) represents increasing intensity.

Suggest Corrections

Similar questions

Q. The intensity of gamma radiation from a given source is

l

. On passing through

36 m m

of lead, it is reduced to

l / 8

. The thickness of lead which will reduce the intensity to

l / 2

will be:

Q. Two monochromatic coherent light beans

A

and

B

have intensities

L

and

\frac{L}{4}

respectively.If these beams are super-posed, the maximum and minimum intensities will be

Q. X-ray beam of intensity

I_{0}

passes through an absorption plate of thickness d. If absorption coefficient of material of plate is

μ

, the correct statement regarding the transmitted intensity I of X-ray is

Consider the arrangement shown in figure (17-E7). By some mechanism, the separation between the slits $S_{3}$ and $S_{4}$ can be changed . the intensity is measured at the point P which is at the common perpendicular bisector

of $S_{1} S_{2}$ and $S_{3} S_{4}$ When z = $\frac{d λ}{2 d},$ the intensity measured at P is I. Find this intensity when z is equal to
(a) $\frac{D λ}{d}$ , (b) $\frac{3 D λ}{2 d}$ and (c) $\frac{2 D λ}{d} .$

X

-ray beam of intensity

I_{0}

passes through an absorption plate of thickness

d

. If absorption coefficient of material of plate is

μ

, the correct statement regarding the transmitted intensity

I

X

-ray is :

Join BYJU'S Learning Program

A light of intensity 10 passes through a material of thickness d, then the intensity will be.

The correct option is A l=l0e−dλWhen a light passes through a material its intensity goes on decreasing. First equation given represents exponentially decreasing intensity. Option (b) and (c) represents increasing intensity.

The correct option is A $l = l_{0} e^{- d λ}$
When a light passes through a material its intensity goes on decreasing. First equation given represents exponentially decreasing intensity. Option (b) and (c) represents increasing intensity.