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Physics

Physics
At what temperature (in degree Celsius), the numerical values on Celsius and Fahrenheit scales become equal?

–273
40
273
–40

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Physics
The absorption of ink by blotting paper involves:

Diffusion of ink through the blotting
Viscosity of ink
Siphon action
Capillary action phenomenon

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Physics
Velocity of sound in air does not depend on

Humidity of air
Temperature of air
Density of air
Pressure of air

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Physics
A transformer works on the principle of

Inverter
Mutual induction
Self induction
Generator

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Physics
The term ''Higgs Boson' is associated with

Oncology
God Particle
Stem Cell Research
Nano Technology

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Physics
In spherical polar coordinates (l, q, a), q denotes the polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by

Psinq sina
Pcosq sina
Pcosq cosa
Psinq cosa

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