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Q.

Choose the correct sequence of radiation sources in increasing order of the wavelength of electromagnetic waves produced by them

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a

X-ray tube, magnetron value, radioactive source, sodium lamp

b

Radioactive source, X-ray tube, sodium lamp, Magnetron value

c

X-ray tube, Magnetron value, Sodium lamp, radioactive source

d

Magnetron value, Sodium lamp, X-ray tube radioactive source

answer is B.

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Detailed Solution

Radioactive source   ~1012m
X-ray tube   ~1010m                   

Sodium lamp  ~109m
Magnetron value  ~103m

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