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  •  Match List - I (Electromagnetic wave type) with List - II (Its association/application) and select the correct option from the choices given below the lists : <img src="https://cdn.

 Match List - I (Electromagnetic wave type) with List - II (Its association/application) and select the correct option from the choices given below the lists :

Option: 1

(a)    (b)    (c)    (d)

(iv)    (iii)    (ii)    (i)


Option: 2

(a)    (b)    (c)    (d)

(i)    (ii)    (iv)    (iii)


Option: 3

(a)    (b)    (c)    (d)

(iii)    (ii)    (i)    (iv)


Option: 4

(a)    (b)    (c)    (d)

(i)    (ii)    (iii)    (iv)


Answers (1)

best_answer

Ultra-Violet Radiation -

Frequency Range 8 \times 10^{14} Hz to 3 \times 10^{17} Hz

- wherein

Wavelength Range 100 A^{o} to 3750 A^{o} 

 

 

Radio Wave -

20 Hz to 10^{9} Hz (Frequency Range)

- wherein

0.3 m to 1.5 \times 10^{7} m (Wavelength Range)

 

 

X Rays -

Frequency Range 3 \times 10^{17} Hz to 3 \times 10^{19} Hz

- wherein

Wavelength Range 0.1 A^{o} to 100 A^{o}

 

 

Infrared Waves -

Frequency Range 3 \times 10^{11} Hz to 4 \times 10^{14} Hz

- wherein

Wavelength Range 7500 A^{o} to 1 mm

 

1. Infrared rays are used to treat muscular strain because these are heat rays.

2. Radio waves are used for broadcasting because these waves have very long wavelengths ranging from a few centimetres to a few kilometres.

3. X-rays are used to detect fractures of bones because they have very high penetrating power but they cannot penetrate through a denser medium like bones.

4. Ultraviolet rays are absorbed by the ozone of the atmosphere.

Posted by

sudhir.kumar

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