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Physics

Physics
The paramagnetic theory of magnetism applies to

Platinum
Nickel
Mercury
Iron

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Physics
One Kilowatt hour is equal to -

3.8 Mega Joule
3.2 Mega Joule
4.0 Mega Joule
3.6 Mega Joule

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Physics
A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ?

Disk
Depends on their masses
Both reach at the same time
Sphere

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Physics
The reflector of a search light is a :

Concave mirror
Plane mirror
Convex mirror
Cylindrical mirror

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Physics
A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be :

F
(3/4)f
(4/3)f
(7/3)f

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Physics
A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle ?

Parabolic
Great circle
Hyper–parabolic
Circle

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