The work function of metal A is less than that of metal B. (a) The threshold wavelength
Question:
(a) The threshold wavelength for metal A is (1) shorter than, (2) the same as, (3) longer than that of metal B. Why?
(b) If the threshold wavelength for metal B is 620 nm and the work function of metal Ais twice that of metal B, what is the threshold wavelength for metal A?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 77% (9 reviews)
a Since f A f B it requires less energy to just remove an electron from me...View the full answer
Answered By
Ayush Mishra
I am a certified online tutor, with more than 3 years of experience in online tutoring. My tutoring subjects include: Physics, Mathematics and Mechanical engineering. I have also been awarded as best tutor for year 2019 in my previous organisation. Being a Mechanical Engineer, I love to tell the application of the concepts of science and mathematics in the real world. This help students to develop interest and makes learning fun and easy. This in turn, automatically improves their grades in the subject. I teach students to get prepared for college entry level exam. I also use to teach undergraduate students and guide them through their career aim.
5.00+
2+ Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Modern Physics questions
-
When UV light of wavelength 285nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.40eV. What is the work function of the metal?
-
When 230-nm light falls on a metal the current through a photoelectric circuit (Fig 27-6) is brought to zero at a stopping voltage of 1.64V. What is the work function of the metal?
-
Illuminating the surface of a certain metal alternately with light of wavelengths 1 = 0.35m and 2 = 0.54m, it was found that the corresponding maximum velocities of photoelectrons differ by a factor...
-
Common structural steel can be represented on drawings using a letter, immediately followed by a number, then another number (for example, S14x30). The two numbers for a steel member W16x60 designate...
-
Discuss briefly the events leading to the passage of the 16th Amendment to the U. S. Constitution.
-
On 1 January 2018, Offspring and Co Ltd had an issued share capital of 360,000 ordinary 1 shares. The balance of retained profit was 36,000 and there was also a general reserve of 28,800. During the...
-
Why are information security and privacy important considerations in the design, development, and maintenance of an HRIS?
-
Suppose the following items were taken from the balance sheet of Nike, Inc. (All dollars are in millions.) Instructions Perform each of the following. (a) Classify each of these items as an asset,...
-
9. Write a trinomial of the form x + bx+c that is prime.
-
Assuming a lower specification limit of 47 grams and an upper specification limit of 53 grams, what is the process capability of this process? How many defects would you expect in one million bags?...
-
Find the approximate temperature of a red star that emits light with a wavelength of maximum emission of 700 nm (deep red).
-
Figure 27.21 shows a graph of stopping potential versus frequency for a photoelectric material. Determine (a) Plancks constant and (b) The work function of the material from the data contained in the...
-
Todd Zimler, who files a joint income tax return with his wife, Stella, owns 85 per-cent of the outstanding stock of Zimler Manufacturing. In January of last year, Todd transferred a tract of...
-
Dr. Kapil Seths Imaging Centre Ltd. part exchanged its old X-ray machine with a new one from Rajneesh Medical Equipments Ltd. Net book value of the old X-ray machine was 4,68,345. However the vendor...
-
What are the salient features of conventional energy sources?
-
What is the new pressure on a sample of gas that has an initial volume of \(1.4 \mathrm{~L}\) and a pressure of \(750 \mathrm{~mm}\) if the volume becomes \(2.2 \mathrm{~L}\) at the same temperature?
-
What are the methods of harnessing solar energy? Explain the principle of wind-mill.
-
Write the various types of coals available for combustion and mention their properties.
-
The article Foraging Behavior of the Indian False Vampire Bat (Biotropica [1991]: 6367) reported that 36 of 193 female bats in flight spent more than 5 min in the air before locating food. For male...
-
White Bolder Investments (WBI) You are an intern working for WBI, a large investment advisory services in Sydney. Among other regular customers, WBI has been providing advisory services for Jumbo...
-
A 0.50-kg ball falls past a window that is 1.50 m in vertical length. (a) How much did the KE of the ball increase as it fell past the window? (b) If its speed was 3.0 m/s at the top of the window,...
-
Just before striking the ground, a 2.00-kg mass has 400 J of KE. If friction can be ignored, from what height was it dropped?
-
A pump lifts water from a lake to a large tank 20 m above the lake. How much work against gravity does the pump do as it transfers 5.0 m 3 of water to the tank? One cubic meter of water has a mass of...
-
Consider the following information: State Probability ABC Inc.'s Return Boom 0.25 15% Normal 0.50 8% Slowdown 0.15 4% Recession 0.10 -3% i. 11. iii. What is the expected return? What is the variance?...
-
The mythical country of Quitar has just established a policy to give very generous in-kind benefits to the nation's poor, currently defined as those earning less than $10,000 a year. Several years...
-
Question 1 The external loadings imposed on a horizontal beam is shown in Figure Q1(a). The beam is pivoted at Point A. (a) (b) 100 N/m 50 N/m 20 N 40 cm 50 cm Figure Q1 70 cm Apply the principle of...
Study smarter with the SolutionInn App