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Physics

Physics
On the Kelvin scale, the melting point of ice is

273K
0 K
100K
373K

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Physics
What will happen if an object is dropped from a height and there is no air resistance?

It will fall with a constant speed and acceleration
Its speed will increase
Both speed and acceleration will increase
Its acceleration will increase

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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
For which one of the following, ''Diodes' are generally used for?

Amplification
Rectification
Modulation
Filtration

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Physics
The propagation of sound waves in a gas involves

Isothermal compression and rarefaction
Isobaric compression and rarefaction
Isochoric compression and rarefaction
Adiabatic compression and rarefaction

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Physics
Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as

Seebeck effect
Thomson effect
Peltier effect
Joule effect

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