Question

In: Physics

Select True or False for the following statements about electromagnetic waves. The sun's radiation is most...

Select True or False for the following statements about electromagnetic waves. The sun's radiation is most intense in the visible region. Radio waves travel in vacuum at a lower speed than the visible light. The Earth's atmosphere is quite transparent to infrared radiation. Gamma rays can be produced through electrons oscillating in wires of electric circuits. Visible light is often emitted when valence electrons change their state. A vertical automobile antenna is sensitive to electric fields polarized vertically. X-rays travel in vacuum at a higher speed than the visible light.

Solutions

Expert Solution

The sun's radiation is most intense in the visible region.

TRUE , Other most intense region is UV.

------------------------------------------------------------------------------------------------------------------------

Radio waves travel in vacuum at a lower speed than the visible light.

False

---------------------------------------------------------------------------------------------------------------------------

The Earth's atmosphere is quite transparent to infrared radiation.  

False

---------------------------------------------------------------------------------------------------------------------------

Gamma rays can be produced through electrons oscillating in wires of electric circuits.

False

-------------------------------------------------------------------------------------------------------------------------------

Visible light is often emitted when valence electrons change their state.

True - example is light bulbs

---------------------------------------------------------------------------------------------------------------------------------

A vertical automobile antenna is sensitive to electric fields polarized vertically -

True.

---------------------------------------------------------------------------------------------------------------------------

X-rays travel in vacuum at a higher speed than the visible light

False. All electromagnetic waves travel at same speed, speed of light.


Related Solutions

Which of the following is false about wavelengths of electromagnetic radiation
Which of the following is false about wavelengths of electromagnetic radiationa) Radiation with short wavelengths have high energies b) Energy does not depend on wavelength c) Radiation with long wavelengths have low energies d) Energy depends on wavelength
Select the statements below that are false and think about why they are not true. a)...
Select the statements below that are false and think about why they are not true. a) If a chemical reaction is spontaneous then the ?Ssys must always be positive. b)If a chemical reaction with a negative ?Ssys is spontaneous then ?Ssurr must be positive. c) If a chemical reaction is spontaneous then the ?Euniv must be increasing. d) We don\'t need to worry about spontaneous reactions because they are rare.
Select True or False to each of the following statements about this week's electric field mapping...
Select True or False to each of the following statements about this week's electric field mapping experiment. In order to receive credit for this question you must answer ALL statements correctly. NOTE: The number of attempts has been reduced on this question. True False  Electric field lines can curve. True False  All electric potemtials are measured with respect to the positive terminal of the power supply. True False  The COM port of the digital multimeter (voltmeter) is connected to the positive terminal of...
Indicate whether the following statements are true or false. (Select T-True, F-False. If the first is...
Indicate whether the following statements are true or false. (Select T-True, F-False. If the first is T and the rest F, enter TFFFFF). A) A white dwarf is the remnant of the star's core visible after the outer layers have been ejected. B) A planetary nebula is made of hot gas that shows emission line spectra. C) A planetary nebula forms when a star violently explodes. D) White dwarfs are small dense objects about the size of the Earth. E)...
QUESTION 20 Which statement about electromagnetic radiation is not correct? a. All electromagnetic radiation is visible...
QUESTION 20 Which statement about electromagnetic radiation is not correct? a. All electromagnetic radiation is visible to the eye. b. Electromagnetic radiation consists of oscillating electric and magnetic fields. c. Electromagnetic radiation spans a very wide range of wavelengths from gamma rays to radio waves. d. The frequency and wavelength of electromagnetic radiation are related to each other. e. Electromagnetic radiation is emitted by all stars.
Indicate whether the following statements are always true or can be false. (Select T-True, F-False. If...
Indicate whether the following statements are always true or can be false. (Select T-True, F-False. If the first is F and the rest T, enter FTTTTT). A) In order not to slow down, a bicycle moving at a constant velocity needs a small net force applied. B) If two objects have the same acceleration, they are under the influence of equal forces. C) If a net force acts on an object, the object's velocity will change. D) During the collision...
Almost everything we know about the universe comes from information carried in electromagnetic radiation: radio waves,...
Almost everything we know about the universe comes from information carried in electromagnetic radiation: radio waves, microwaves, X-rays, visible light, and gamma waves have been travelling to us for billions of years, all at the speed of light. Using spectroscopes that work on the same principle as the ones we used in lab, scientists read the line spectra that the hot gases emit to determine the elements that compose the stars. Explain.
Which statement about alpha waves is NOT true? Select one: a. Alpha waves tend to be...
Which statement about alpha waves is NOT true? Select one: a. Alpha waves tend to be strongest when the subject has his eyes open and is alert. b. Alpha waves may be expected to be stronger in outgoing subjects (extroverts). c. Typical frequencies vary from 8-13 Hz. d. Females tend to have higher mean frequencies than males. e. Alpha waves are smaller when signals are desynchronized.
Select either true or false for the following statements       1. An opportunity cost is...
Select either true or false for the following statements       1. An opportunity cost is the potential benefit that is lost by taking a specific action when two or more alternative choices are available.   (Click to select)FalseTrue 2. A sunk cost will change with a future course of action.   (Click to select)TrueFalse 3. An out-of-pocket cost requires a current and/or future outlay of cash.   (Click to select)FalseTrue 4. Relevant costs are also known as unavoidable costs.   (Click to select)FalseTrue...
Select either true or false for the following statements       1. An opportunity cost is...
Select either true or false for the following statements       1. An opportunity cost is the potential benefit that is lost by taking a specific action when two or more alternative choices are available.   (Click to select)FalseTrue 2. A sunk cost will change with a future course of action.   (Click to select)FalseTrue 3. An out-of-pocket cost requires a current and/or future outlay of cash.   (Click to select)FalseTrue 4. Relevant costs are also known as unavoidable costs.   (Click to select)TrueFalse...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT