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

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Physics
Mica is used in electrical appliances such as electric iron because mica is

a bad conductor of heat as well as electricity
a good conductor of heat but a bad conductor of electricity
a good conductor of heat as well as electricity
a bad conductor of heat but a good conductor of electricity

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Physics
Circuit breaker usually operate under

Transient state of short-circuit current
After D. C. component has ceased
Steady state of short-circuit current
Sub-transient state of short-circuit current

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