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Physics

Physics
The radiation initially produced in fluorescent tube is

X-rays
Microwaves
Infrared
Ultraviolet

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Physics
Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?

12.33 diopters
-4.33 diopters
-12.33 diopters
4.33 diopters

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Physics
Damp clothes are dried in spin dryers by the action of

Non central forces
Centrifugal forces
Central forces
Centripetal forces

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Physics
Magnetism in materials is due to

Circular motion of electrons
All neutrons at rest
Electrons at rest
Protons at rest

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Physics
The domain theory of magnetism applies to

Aluminium
Silver
Copper
Cobalt

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Physics
Lamberts law is related to

Interference
Illumination
Reflection
Refraction

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MORE MCQ ON Physics

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