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Physics

Physics
Nuclear sizes are expressed in a unit named

Tesla
Newton
Angstrom
Fermi

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Physics
Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre?

3.75 diopters
-3.75 diopters
11.25 diopters
-11.25 diopters

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Physics
When a piece of stone is immersed in water, it displaces water of equal

Mass
Density
Volume
Specific gravity

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Physics
Velocitation is the tendency to

Be traveling at a speed that is slower than perceived
Both A & B
Be traveling at a speed that is faster than perceived
None of these

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Physics
The method of magnetisation is:

Heating a magnet
Passing direct current through it
Hammering a magnet
Passing alternating current through it

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Physics
A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of

36 m/s
25 m/s
18 m/s
30 m/s

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