Find the minimum energy needed to eject electrons

Assignment Help Biology
Reference no: EM131895349

Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 2.39 × 1014 s-1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of λ = 265 nm?

Reference no: EM131895349

Questions Cloud

How many mole of ammonium ions : A 22.5 g sample of ammonium carbonate contains how many mole of ammonium ions?
Hydrocarbons in order of increasing flammability : A general rule for hydrocarbons is that the higher the molecular weight, the less flammable the hydrocarbon is.
What is unconscious inference : What is the difference between top-down and bottom-up processing. Give an example of bottom-up processing.
Recommended daily allowance of potassium : One 69 gram serving of cereal supplies 224 mg of potassium, which is 11% of the recommended daily allowance of potassium.
Find the minimum energy needed to eject electrons : Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 2.39 × 1014 s-1.
What force holds nacl units together : What Force holds NaCl units together? What force gives water unique properties?
Determining the wavelength of the electrons : To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object.
How to develop your professional identity : Because few undergraduate programs offer courses in counseling, one of the areas in which new counselors struggle is that of developing a professional identity.
Find the surface temperature of a star : A star can be considered a black body. Find the surface temperature of a star where ?max = 609 nm

Reviews

Write a Review

Biology Questions & Answers

  Explain the ninhydrin and biuret tests

BASED ON NINHYDRIN AND BIURET TESTS, PLEASE PREDICT THE TEST RESULTS AS EITHER BEING POSITIVE OR NEGATIVE ALANINE, TYROSINE, LYSOZYME, DENATURED LYSOZYME, COMPLETLEY HYDROLYZED LYSOZYME

  How did darwin define the process of natural selection

How did Darwin define the process of natural selection and how did Darwin's theories differ from his predecessors?

  Closest to the exact value

2b. Assume you have a sample of atoms with a half-life of 0.5 second. Approximately how much (in %) of the original sample will be around after 3.5 seconds? * Choose the answer closest to the exact value.

  Detecting and counting microbial populations

Contrast two different methods of detecting and counting microbial populations. What are their advantages and disadvantages?

  How much extra weight would a mother retain

For the purposes of this question, you should assume that there are 30 days in a month. Approximately how much extra weight (in kilograms) would a mother retain by exclusive breastfeeding for 3 months as opposed to 8 months after birth? Enter your..

  Basic techniques for microbiology

The experimental work of Pasteur and Koch led to the development and widespread use of four essential or basic techniques for microbiology

  Calculate the relative fitness and selection coefficient

Calculate the relative fitness and selection coefficient for each genotype and which genotype has the highest selection coefficient? What does this mean?

  Development of new humans within the bodies of their mothers

Why is the maintenance of homeostasis especially important during development of new humans within the bodies of their mothers? What can go wrong if specific homeostatic functions are disrupted

  How mutations can be beneficial

Mutations can be beneficial, deleterious or neutral. How would you design an experiment to evaluate the relative proportion of the different kinds of spontaneous mutations in an organism (2)?

  Explain his reactions in terms of ans activity

As the aroma of freshly brewed coffee drifted by a sleeping student's nose, his mouth began to water and his stomach began to rumble. Explain his reactions in terms of ANS activity.

  Discuss the importance of the specific sequential activity

Discuss the importance of the specific sequential activity of the microbial flora responsible for sauerkraut production (explain how does the initial bacterial population influence the next?).

  Is water a polar or a non-polar molecule

Is water a polar or a non-polar molecule? What is the consequence of that characteristic for the function of water as solvent?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd