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A helium atom is in a galaxy travelling at a speed of 4.89 x 106 m/s away from the Earth.
An astronomer on Earth observes a frequency from the helium atom of 6.52 x 1014 Hz.
What frequency of light is emitted from the helium atom?
If the charges are situated in a medium of permittivity ε, then the magnitude of the force between them will be, If the charges are situated in a medium of permittivity ε, then th
A light is evaluated by a rotating Nicol showed no variation of intensity. Determine the state of polarization?
What is the meaning of Refraction? Waves that do not reflect back from a boundary but travel into the new medium instead are said to refract. In one dimension, the wave just mo
how
If a negative charged particle enters a magnetic field perpendicularly,then it follows a circular path.In what directn does the particle move---in clockwise or anticlockwise? So
i want to make a project of electromagnetic induction
Can you differentiate between half wave plate and full wave plate?
If the distance between the earth and moon were halved, the force of the attraction between them would be: a) One fourth as great b) One half as great c) Twice as g
Radiation and Radioactivity Investigator of radioactivity discovered that certain natural elements, primarily the very heavy ones, have unstable nuclei that disintegrate to emi
A steam bath An evaporating dish and steam bath can be contrived from a saucer and a tin. Scallops are cut out of the top of the tin to permit the steam to escape
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