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Physics

Physics
The washing machine works on the principle of

Dialysis
Centrifugation
Diffusion
Reverse osmosis

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Physics
Photon is the fundamental unit/quantum of

Magnetism
Electricity
Light
Gravitation

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Physics
In the case of bodies falling under gravity which of the following remains constant at a given place?

Potential energy
Acceleration
All listed here
Kinetic energy

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Physics
When all the forces and torques are balanced in a mechanical body it is said to be in

Static
None of these
Equilibrium
Buoyancy

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Physics
The fact that two large ships travelling on close parallel courses in the same direction tend to move towards each other can be explained by

Magnetic properties of the ship's material
Newton's third law of motion
Earth's gravitational force
Bernoulli's principle

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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?

11.25 diopters
-3.75 diopters
-11.25 diopters
3.75 diopters

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