SATHEE: electromagnetic-waves Question 35

electromagnetic-waves Question 35

Question: Q. 2. Name the EM waves in the wavelength range $10 nm$ to $10^{- 3} nm$ . How are these waves generated ? Write their two uses.

U] [O.D. comptt. I 2017]

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Solution:

Ans. Name of EM wave $X$ -rays

Produced by bombarding a metal target with high energy electrons.

Uses :

(i) Used in diagnosis of bone fractures.

(ii) Treatment of some forms of cancer.

[CBSE Marking Scheme 2017]

Detailed Answer :

(i) $X$ -rays : wavelength $10^{- 12} m - 10^{- 8} m$ , frequency $10^{20}$ $Hz - 10^{16} Hz$

(ii) Generation :

$X$ -radiation occurs due to electron transitions among upper and lower energy levels of heavy elements excited by electron bombardment or rapid deceleration of electrons.

(iii) Uses :

(a) Used in medicine and dentistry $1 / 2$

(b) Mammograms use $X$ -rays to identify breast cancer.

Electromagnetic Waves

electromagnetic-waves Question 35

Detailed Answer :

Table of Contents

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Electromagnetic Waves

electromagnetic-waves Question 35

Detailed Answer :

Table of Contents

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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