Physics
If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths?

LUV < lVIS < lIR
LUV < lIR < lVIS
LUV > lIR > lVIS
LUV > lVIS > lIR

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Physics
Negative feedback in amplifiers

Increases bandwidth and increases noise
Increases bandwidth and decreases noise
Decreases bandwidth and increases noise
Decreases bandwidth and decreases noise

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