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Physics

Physics
The unit for measuring electric power is the

Steridian
Watts
Volts
Watts

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Physics
A concave lens always forms an image which is

Virtual and inverted
Real and inverted
Virtual and erect
Real and erect

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Physics
Point A is at a lower electrical potential than point B. An electron between them on the line joining them will

Remain at rest
Move towards B
Move towards A
Move at right angles to the line joining A and B

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Physics
The atmospheric air is held to the Earth by :

Clouds
Gravity
Rotation of the Earth
Winds

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

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Physics
In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is

Decreased by 4%
Increased by 4%
Increased by 2%
Decreased by 2%

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