Q.

Electromagnetic waves with wave length are given.  Arrange these wavelengths in decreasing order of magnitudea) λ1are used to treat muscular strain                    b) λ2are used by a FM radio station for broadcastingc)  λ3are used to detect fracture in bones             d)  λ4are absorbed by the ozone layer of the atmosphere

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a

λ1>λ2>λ3>λ4

b

λ2>λ1>λ4>λ3

c

λ1<λ2<λ3<λ4

d

λ1>λ2<λ3<λ4

answer is B.

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Detailed Solution

λ1 belongs to Infrared radiationsλ2 belongs to VHF radiationsλ3 belongs to X-raysλ4 belongs to ultraviolet rays
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Electromagnetic waves with wave length are given.  Arrange these wavelengths in decreasing order of magnitudea) λ1are used to treat muscular strain                    b) λ2are used by a FM radio station for broadcastingc)  λ3are used to detect fracture in bones             d)  λ4are absorbed by the ozone layer of the atmosphere