Physics Period of oscillation of 3 cm microwaves in seconds is 0.01 1 × 10–10 1 × 1010 0.001 0.01 1 × 10–10 1 × 1010 0.001 ANSWER DOWNLOAD EXAMIANS APP
Physics After long periods of use, a grey spot develops on the inside of a bulb. This is because Glass undergoes a change due to the heat The heat of the bulb scorches the glass at the top The tungsten filament evaporates and collects there Dust inside the bulb condenses on the top Glass undergoes a change due to the heat The heat of the bulb scorches the glass at the top The tungsten filament evaporates and collects there Dust inside the bulb condenses on the top ANSWER DOWNLOAD EXAMIANS APP
Physics The mass of a star is two times the mass of the Sun. How it will come to an end ? Neutron Star White Dwarf Red Giant Black hole Neutron Star White Dwarf Red Giant Black hole ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in air Increases with decrease of temperature Decreases with decrease of temperature Does not depend on temperature Decreases with increase of temperature Increases with decrease of temperature Decreases with decrease of temperature Does not depend on temperature Decreases with increase of temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels fastest in Vacuum Glass Air Water Vacuum Glass Air Water ANSWER DOWNLOAD EXAMIANS APP
Physics Rectifiers are used to convert: Alternating current to Direct current Direct current to Alternating current High voltage to low voltage Low voltage to high voltage Alternating current to Direct current Direct current to Alternating current High voltage to low voltage Low voltage to high voltage ANSWER DOWNLOAD EXAMIANS APP
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