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parsec:
The unit of distance explained as the distance mentioned by an Earth-orbit parallax of 1 arc sec. It equals approximate 206 264 au, or about 3.086 x 1016 m.
A compound microscope with an objective of 1.0 cm focal length and an eye-piece of 2.0 cm focal length has a tube length of 20 cm. Measure the magnifying power of the microscope, i
Explain about the inverse piezoelectric effect. Inverse piezoelectric effect: While an alternating e.m.f is applied to the opposed faces of a quartz or tourmaline crystal th
A helium atom is in a galaxy travelling at a speed of 4.89 x 10 6 m/s away from the Earth. An astronomer on Earth observes a frequency from the helium atom of 6.52 x 10 14 H
a. Explain the following terms in connection with electro-magnetic waves: (i) Transverse waves (ii) Power density (iii) Wave impedance (iv) Polarization b. State the chara
A particle executes linear some with an amplitude if 2 cm.when the particle is at 1cm from the mean position the magnitude of its velocity is equal to that of its acceleration.Then
A UNIFORM ROD OF MASS M, HINGED AT ITS UPPER END, IS RELEASED FROM REST FROM A HORIZONTAL POSITION. WHEN IT PASSES THROUGH THE VERTICAL POSITION FIND THE FORCE ON THE HINGE.
Faraday's second law of electrolysis: The charge Q needed to deposit or liberate a mass m is proportional to the charge z of the mass, the ion and inversely proportional to th
Define the Wave Nature of Sound Sound is called a longitudinal wave because the vibrations are in the same direction as the motion and speed of the wave. This is most easily pi
Q. What are the methods of inducing emf in a circuit? The induced emf is able to be produced by changing a) The magnetic induction (B) b) Area enclosed by the coil (A) f
who made einstein''s theory wrong and how?
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