Comment with a brief explanation whether the following statements are true or false: 1. The wavelength...

Comment with a brief explanation whether the following statements are true or false:

1. The wavelength of an electron moving with a velocity of 1.1*10^6 m/s is 6.6 nm.

2. In photoelectric effect, whether an electron will be ejected by light is determined not by the intensity of light but by the wavelength.

3. The temperature of a star can be determined using its radiation spectrum.

4. Resistance-temperature-detector is based on resistivity of a metal decreasing with temperature.

Solutions

Expert Solution

genius_generous answered 1 month ago

Next > < Previous

Related Solutions

Comment on whether each of the following statements is true or false. (a) The Durbin Watson...

Comment on whether each of the following statements is true or false. (a) The Durbin Watson statistic is useless because it is based on assumptions that are rarely satisfied in time series regressions. (b) a Durbin Watson statistic below 2 shows negative serial correlation because it is a statistic based on the AR(1) coefficient of the error term. (c) Consider a time series process that follows a random walk drift. Is the first difference of that time series stationary? Is...

Q4. State whether the following are true or false with a brief explanation (1-2 sentences). (i)...

Q4. State whether the following are true or false with a brief explanation (1-2 sentences). (i) Given a control volume with one inlet and two exits, the two exits must have identical mass flow rates. (ii) You are given a control volume with one inlet and one exit such that more ‘mechanical energy’ is coming in than going out (‘mechanical energy’ is the sum of enthalpy, kinetic energy and potential energy per unit mass), but are given no information on...

For each of the following statements, say whether it is true or false. Give a brief...

For each of the following statements, say whether it is true or false. Give a brief argument and/or an example to explain your answer. (a) "In some sequential move games there is a first-mover advantage; in others there is a second-mover advantage." (b) "Game theory shows how the rational behavior by individual players leads to outcomes that are socially optimal".

Determine whether the following statements are true or false, and give an explanation or a counterexample....

Determine whether the following statements are true or false, and give an explanation or a counterexample. (a) log3y< log2y for y> 1 (b) The domain of f(x) = ln(x^2) is x > 0

Determine whether each of the following statements is TRUE or FALSE and write a short explanation...

Determine whether each of the following statements is TRUE or FALSE and write a short explanation for your answer It is a good practice to have loss leaders at the very front of the store so that more customers can see them quickly and get attracted to them. One of the objectives of a promotion strategy is to impede the success of new market entrants in gaining a significant market share. One advantage of intensive distribution is that the firm...

Determine whether each of the following statements is TRUE or FALSE, and write a short explanation...

Determine whether each of the following statements is TRUE or FALSE, and write a short explanation for your answer (answer should be 1-3 sentences) 1) If individuals bid more than their value in a BDM, they can risk losing money by forgoing a purchase that could have made them better off (given them more value than cost). 2) Limited input availability, low inventories, and extended time period are all factors that act to decrease price elasticity of supply (i.e., result...

a) Indicate whether the following statements are true or false. Provide an explanation for your answer:...

a) Indicate whether the following statements are true or false. Provide an explanation for your answer: i. The most important role of money is to serve as a store of value. ii. An increase in the money supply will shift the AD curve upwards and to the left. iii. Rising output coupled with falling prices is called stagflation. iv. A cut in taxes will shift the aggregate demand curve upwards and to the right. v. Free trade is based on...

Provide an explanation of whether the following statements are true, false, or uncertain: a. “Tom’s workplace...

Provide an explanation of whether the following statements are true, false, or uncertain: a. “Tom’s workplace provides free access to a fitness room; Jerry’s does not. Vertical equity requires that Tom be taxed on the value of having access to the fitness room.” b. “Tom’s workplace provides free access to a fitness room; Jerry’s does not. If Haig-Simons income was used as the tax base, Tom would be taxed on the value of having access to the fitness room.”

1 True/False For each of the following statements say whether it is true or false and...

1 True/False For each of the following statements say whether it is true or false and explain why using a couple of sentences, graphs or equations. (a) If marginal cost of serving two markets is identical, then an internationally discriminating monopolist would set the same price in both markets. (b) Granting a market economy status to China would make it more difficult to impose antidumping duties on Chinese firms.

Indicate whether the following statements are true or false. Provide an explanation for your answer: i....

Indicate whether the following statements are true or false. Provide an explanation for your answer: i. In a perfectly competitive market an increase in demand for a product may increase prices in the short run but not in the long run. ii. The "invisible hand" is a metaphor for how societies create laws to regulate what and how things are produced in an economy. iii. The opportunity cost of an item or an action is always equal to the amount...

Subjects