Modern Physics> When incident wavelength is lamda, stoppi...

When incident wavelength is lamda, stopping potential is 3 Vo. If incident wavelength is 2 lambda then stopping potential is Vo. Find out threshold wavelength in terms of lambda

Preeti , 7 Years ago

Grade 11

1 Answers

Adarsh

Last Activity: 7 Years ago

Dear Preeti ,

Let the threshold wavelength be λ₀ ,

Now A/Q 3V₀ = hc/(λ₀– λ) …..... ( 1 )

V₀= hc/(λ₀– 2λ) …....... ( 2 )

dividing 1 by 2 we get , 3 = (λ₀– 2λ) / (λ₀– λ) => λ₀ = λ/2 .

Hence the threshold wavelength is half of lambda..

Thanks and Regards

Adarsh

Provide a better Answer & Earn Cool Goodies

LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

Full Live Access

Study Material

Live Doubts Solving

Daily Class Assignments

Ask a Doubt

Get your questions answered by the expert for free

A particle is projected in vertical plane such that after 5 seconds its velocity becomes horizontal. The maximum height attained by the projectile from point of projection is n3 m. The value of n is _______. (g = 10 m/s2)

modern physics

1 Answer Available

Last Activity: 2 Years ago

Two particles approach each other from very large distance as shown, . if the least separation between the particles is b, what is the speed of M in center of mass frame when particles are closest? (gravity negligible)

modern physics

0 Answer Available

Last Activity: 2 Years ago

Can the sum of two equal vectors be equal to either vector

modern physics

0 Answer Available

Last Activity: 2 Years ago

A nucleus X¹⁸⁴ at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is

modern physics

0 Answer Available

Last Activity: 3 Years ago

SUBJECT: PROBLEM BASED ON LINE DETECTION.
Query: How to apply all the filters for line detection on the following piece of image (provided below)? Explain its Observations to comment on its results.

modern physics

0 Answer Available

Last Activity: 3 Years ago

View all Questions

Modern Physics> When incident wavelength is lamda, stoppi...

When incident wavelength is lamda, stopping potential is 3 Vo. If incident wavelength is 2 lambda then stopping potential is Vo. Find out threshold wavelength in terms of lambda

Preeti , 7 Years ago

Adarsh

Provide a better Answer & Earn Cool Goodies

LIVE ONLINE CLASSES

Ask a Doubt

Other Related Questions on modern physics

A particle is projected in vertical plane such that after 5 seconds its velocity becomes horizontal. The maximum height attained by the projectile from point of projection is n3 m. The value of n is _______. (g = 10 m/s2)

modern physics

Two particles approach each other from very large distance as shown, . if the least separation between the particles is b, what is the speed of M in center of mass frame when particles are closest? (gravity negligible)

modern physics

Can the sum of two equal vectors be equal to either vector

modern physics

A nucleus X184 at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is

modern physics

SUBJECT: PROBLEM BASED ON LINE DETECTION.Query: How to apply all the filters for line detection on the following piece of image (provided below)? Explain its Observations to comment on its results.

modern physics

A nucleus X¹⁸⁴ at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is

SUBJECT: PROBLEM BASED ON LINE DETECTION.
Query: How to apply all the filters for line detection on the following piece of image (provided below)? Explain its Observations to comment on its results.