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Q. Which of the following isn't true of Guglielmo Marconis experiments on wireless transmission
Answer:-
A) In 1901 he broadcasted a signal from Newfoundland to England
B) He defied present belief on line-of-sight transmission
C) His work was a practical request of the work of James Clerk Maxwell
D) His achievement was a vindication of his belief in the reflective properties of the ionosphere
Explain power of a lens. What is the principle of an optical fibre? What is a thin prism? Describe angular dispersion between two colours for a prism.
A 25 N box is pulled vertically upward by means of a cord.Find the acceleration of the box if the tension in the cord is 35 N.
Capacitance: If we increase the voltage between the plates, the charge increases, but the ratio of charge to voltage remains the same. This ratio gives the capacitance (C) of
the force of a capillarity in plant is given by surface tension =density*r*g*h/2.is the equation correct or not
Damped Simple Harmonic Motion Adding a damping force proportional to x to the equation of easy harmonic motion, the first derivative of x along with respect to time, the equati
By what percentage should the pressure of a given mass of gas be increased,so as to decrease its volume by 10% at a constant temperature.
In nuclear fusion two or more than two lighter nuclei join to form a single heavy nucleus. The volume of one molecule so formed is less than the sum of the masses of parent nuclei.
A charge of 1.5µC is carried on two parallel rectangular plates each measuring 60mm by 80mm. Measure the electric flux density. If the plates are spaced 10mm apart and the v
Start from the expression of the electric field outside an infinite sheet of uniform surface charge density, E = s/2epsilon, derive the electric field just outside an ideal conduct
In physics, a radian per second is a unit of: a) Angular displacement b) Angular velocity c) Angular acceleration d) Angular momentum. Ans: A radian per
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