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The chemical reaction between zinc and dilute hydrochloric acid produces zinc chloride and hydrogen gas:
`Zn + 2HCl → ZnCl₂ + H₂↑`
The hydrogen gas released is colorless, odorless, and flammable.
Which of the following decays does not change the atomic number of the nucleus?
Planck’s constant has dimensions equivalent to which of the following?
A body is thrown upward with an initial velocity of 20m/s. How much time will it take to reach its maximum height. (g=10m/s)
The Pointing vector of electromagnetic waves has the same dimensions as that of:
The speed of a fast moving electron, having total energy of 2 MeV, is nearly:
What is found in frequency modulation?
In Newton’s law of cooling, the rate of temperature fall is proportional to:
A transformer works on which principle?
Which law is violated if two bodies in mutual gravitational interaction exert unequal forces on each other?
A larger force on a rotating body results in larger _____.