EBK INQUIRY INTO PHYSICS
EBK INQUIRY INTO PHYSICS
8th Edition
ISBN: 8220103599450
Author: Ostdiek
Publisher: Cengage Learning US
bartleby

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Chapter 10, Problem 17Q
To determine

What is meant by ionization? Discuss the ways by which atom can be ionized?

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identify the knowns, unknown(s), appropriate formula(s) then computation 1. a). The wavelength of maximum solar emission is observed to be approximately 0.475μm. What is the surface temperature of the sun (assumed as blackbody)? (b) The temperature of the human body when having a high fever is 40 deg C. The intensity of radiation emitted by the human body is maximum at what wavelength? (c) The Cosmic Microwave Background radiation (CMB) fills the universe. If temperature of the space is 2.7 K, then CMB attains intensity maxima at what wavelength?
Explain the concept of the ionization process in your own words, precisely. TIA!
Question 2 A center-fed dipole is excited by a current Io =9.3 A. If the dipole is 1.1 cm in length, determine the maximum radiated power density Smax of the E-M wave of frequency 490 MHz at a distance of 700 m. Answer to the 4th digit precision after the decimal place (eg. 1.2345). Smax -(μW/m²) Your Answer: Answer Question 3 An antenna with a radiation efficiency of 89.0% has a directivity of 6.0 dB. What is its gain G in decibels? Answer to the 4th digit precision after the decimal place (eg. 1.2345). G= Your Answer: Answer dB.

Chapter 10 Solutions

EBK INQUIRY INTO PHYSICS