Radio telescopes are better than optical telescopes because

Physics
Radio telescopes are better than optical telescopes because

they can work during the day and night

All of these

they can work even in cloudy conditions

they can detect faint galaxies which no optical telescope can

they can work during the day and night

All of these

they can work even in cloudy conditions

they can detect faint galaxies which no optical telescope can

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Physics
If a copper wire is increased to double its length, its resistance will become

One–fourth

Four times

Half

Double

One–fourth

Four times

Half

Double

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Physics
The apparent weight of a man in a lift is less the real weight when :

The lift is going up with an acceleration

The lift is going up with uniform speed

The lift is going down with an acceleration

The lift is going down with uniform speed

The lift is going up with an acceleration

The lift is going up with uniform speed

The lift is going down with an acceleration

The lift is going down with uniform speed

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Physics
One bar is equal to

103 Pa

105 Pa

106 Pa

104 Pa

103 Pa

105 Pa

106 Pa

104 Pa

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Physics
It takes much longer to cook food in the hills than in the plains, because

in the hills the atmospheric density is low and therefore a lot of heat is lost to the atmosphere

n the hills the atmospheric pressure is lower than that in the plains and therefore water boils at a temperature lower than 100oC causing an increase in cooking time

in the hills the humidity is high and therefore a lot of heat is absorbed by the atmosphere leaving very little heat for cooking

due to low atmospheric pressure on the hills, the water boils at a temperature higher than 100oC and therefore water takes longer to boil

in the hills the atmospheric density is low and therefore a lot of heat is lost to the atmosphere

n the hills the atmospheric pressure is lower than that in the plains and therefore water boils at a temperature lower than 100oC causing an increase in cooking time

in the hills the humidity is high and therefore a lot of heat is absorbed by the atmosphere leaving very little heat for cooking

due to low atmospheric pressure on the hills, the water boils at a temperature higher than 100oC and therefore water takes longer to boil

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Physics
Light houses are places with powerful lights to :

Guide and help large crowds at religious gathering during nights

Indicate to the incoming warships, the location of a harbour during night

Guide and warn the ships coming from different directions in the ocean

Guide and resolve traffic jams in crowded metro-cities during nights

Guide and help large crowds at religious gathering during nights

Indicate to the incoming warships, the location of a harbour during night

Guide and warn the ships coming from different directions in the ocean

Guide and resolve traffic jams in crowded metro-cities during nights

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Physics

Physics Radio telescopes are better than optical telescopes because

Physics If a copper wire is increased to double its length, its resistance will become

Physics The apparent weight of a man in a lift is less the real weight when :

Physics One bar is equal to

Physics It takes much longer to cook food in the hills than in the plains, because

Physics Light houses are places with powerful lights to :

Physics
Radio telescopes are better than optical telescopes because

Physics
If a copper wire is increased to double its length, its resistance will become

Physics
The apparent weight of a man in a lift is less the real weight when :

Physics
One bar is equal to

Physics
It takes much longer to cook food in the hills than in the plains, because

Physics
Light houses are places with powerful lights to :