Physics
The wave theory of light can explain

Interference of light
Black body spectrum
Photoelectric effect
Comptom effect

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

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

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Physics
Rain drops fall from great height. Which among the following statements is true regarding it?

Their velocity increases and they fall with different velocity on the earth
Their velocity increases and they fall with same velocity on the earth
They fall with same ultimate velocity
They fall with that ultimate velocity, which are different for different droplets

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