help@askiitians.com

1800-150-456-789

Modern Physics> The wavelength of photons in two cases ar...

question mark

The wavelength of photons in two cases are 4000 A and 3600 A respectively what is difference in stopping potential for these two? (Give solution using formula)

Preeti , 7 Years ago

Grade 11

2 Answers

Eshan

Last Activity: 7 Years ago

Dear student,

Stopping potential for an incoming photon is equal to the energy of it per unit charge.

Hence stopping potential of $4000A^{\circ}$ photon is $\dfrac{hc}{e\lambda}=3.1V$

Hence stopping potential of $3600A^{\circ}$ photon is $\dfrac{hc}{e\lambda}=3.44V$
Hence the required difference=0.34V

ANJALI KUMARI

Last Activity: 6 Years ago

In 1st case : stopping potential=12400/4000=3.1ev. In 2nd case : stopping potential=12400/3600=3.44ev Difference=3.44- 2.06=0.34ev

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

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: 3 Years ago

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

modern physics

0 Answer Available

Last Activity: 3 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