UNDERSTANDING THE UNIVERSE(LL)-W/CODE
3rd Edition
ISBN: 9780393869903
Author: PALEN
Publisher: NORTON
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Chapter 4, Problem 5QAP
To determine
Whether the statement is true or false.
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If the speed of light is 3×108 meters/second and the wavelength of an infrared wave used in a remote control is 7×10−9 meters, then what is its frequency?
A. 4×1016 Hz
B. 4×10−2 Hz
C. 2×100 Hz
D. 2×10−17 Hz
Microwaves are used as Radar. Why?
6
Long Wavelengths of light have what kind of frequency?
1
Higher frequencies
Lower frequencies
All have the same frequencies
Wavelengths have nothing to do with frequency
Chapter 4 Solutions
UNDERSTANDING THE UNIVERSE(LL)-W/CODE
Ch. 4.1 - Prob. 4.1CYUCh. 4.2 - Prob. 4.2CYUCh. 4.3 - Prob. 4.3CYUCh. 4 - Prob. 1QAPCh. 4 - Prob. 2QAPCh. 4 - Prob. 3QAPCh. 4 - Prob. 4QAPCh. 4 - Prob. 5QAPCh. 4 - Prob. 6QAPCh. 4 - Prob. 7QAP
Ch. 4 - Prob. 8QAPCh. 4 - Prob. 9QAPCh. 4 - Prob. 10QAPCh. 4 - Prob. 11QAPCh. 4 - Prob. 12QAPCh. 4 - Prob. 13QAPCh. 4 - Prob. 14QAPCh. 4 - Prob. 15QAPCh. 4 - Prob. 16QAPCh. 4 - Prob. 17QAPCh. 4 - Prob. 18QAPCh. 4 - Prob. 19QAPCh. 4 - Prob. 20QAPCh. 4 - Prob. 21QAPCh. 4 - Prob. 22QAPCh. 4 - Prob. 23QAPCh. 4 - Prob. 24QAPCh. 4 - Prob. 25QAPCh. 4 - Prob. 26QAPCh. 4 - Prob. 27QAPCh. 4 - Prob. 28QAPCh. 4 - Prob. 29QAPCh. 4 - Prob. 30QAPCh. 4 - Prob. 31QAPCh. 4 - Prob. 32QAPCh. 4 - Prob. 33QAPCh. 4 - Prob. 34QAPCh. 4 - Prob. 35QAPCh. 4 - Prob. 36QAPCh. 4 - Prob. 37QAPCh. 4 - Prob. 38QAPCh. 4 - Prob. 39QAPCh. 4 - Prob. 40QAPCh. 4 - Prob. 41QAPCh. 4 - Prob. 42QAPCh. 4 - Prob. 43QAPCh. 4 - Prob. 44QAPCh. 4 - Prob. 45QAP
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- How far does light travel in 1 year? [This distance, known as a light-year (ly), is used in measuring astronomical distances (Ch. 18.1).]arrow_forwardWhat distinguishes one type of electromagnetic radiation from another? What are the main categories (or bands) of the electromagnetic spectrum?arrow_forwardWhat is the lowest energy form of radiation in the electromagnetic spectrum?arrow_forward
- What is the wavelength of a radio wave that has a frequency of 7.47 x 10^8 Hz?arrow_forwardThe human eye is most sensitive to light with a wavelength of about 550 nm. (a) What is this light’s frequency? (b) Why do you think the human eye has evolved to be most sensitive to this frequency?arrow_forwardRadio wave has the highest radiative energy. False Truearrow_forward
- What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a celestial object at 9 K above absolute zero? waveleng th of maximum intensity nm to tal energy J/s/m2 Which part of the electromagnetic spectrum does the wavelength of maximum intensity lie? gamma-ray X-ray UV visible light IR microwave radioarrow_forwardWhich of the following has the longest wavelength? Infrared 3. ultraviolet ray Microwave 4. visible lightarrow_forwardIf the frequency of an electromagnetic wave is 1x10' Hz, what is its wavelength in nanometers? in meters? What type of electromagnetic wave is this?arrow_forward
- An FM radio station transmits at a frequency of 100 MHz. What is the wavelength of these radio waves in meters? (How do I find the wavelengths?)arrow_forwardFind the frequency of an electromagnetic wave with wavelength 460 nanometers. (in Hz) OA: OC: OD: 1.367x1014 1.708x1014 2.136x1014 2.670x1014 OB: OE: OF: OG: OH: 3.337x1014 4.171x1014 5.214x1014 6.517x1014arrow_forwardplease helparrow_forward
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