In which of the following process, conve...

In which of the following process, convection does not take place primarily

sea and land breeze

boiling of water

warming of glass of bulb due to filament

heating air around a furnace.

Text Solution

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The correct Answer is:

Heating of the glass bulb is primarily due to radiation from the filament. We need some medium for convection and we should know that it is vacuum inside bulb.

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In which of the following process, convection does not take place primarlily?

Sea and land breeze

Boiling of water

Warming of glass of bulb due to filament

Heating of air around a furnace

In which of the following emission of electrons does not take place

Thermionic emission

X-rays emission

Photoelectric emission

Secondary emission

Which of the following reaction does not take place at cathode

`Ag^(+)+e^(-)toAg`

`Cl^(-)toCl+e^(-)`

`H^(+)+e^(-)toH`

`Cu^(2+)+2e^(-)toCu`