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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
Electric field (intensity) is a vector number. Electric field because of a positive particle is always away from the charge and that because of a negative charge is always toward
state and explain pauli''s exclusion principle
Why is quantum mechanics important? Quantum mechanics is important to understand the behavior of systems at atomic length scales and duration smaller. For illustration, when Ne
Q. What are uses of ultra-violet radiations? Uses of ultra-violet radiations: (i) They are utilized to destroy the bacteria and for sterilizing surgical instruments.
What is artificial transmutation? Describe the experiment that led to the discovery of artificial transmutation? Why only high energy α - Particles were used in the discovery of a
A closed magnetic circuit of cast steel have a 6cm long path of cross-sectional area 1 cm 2 and a 2 cm path of cross-sectional area 0.5cm 2 . A coil of 200 turns is wound ar
Mica is a (A) Dielectric material. (B) Insulating material. (C) Magnetic material. (D) Both insulating and dielectric material. Ans: Mica is a both insulating and
Two long wires a and b, carrying equivalent currents of 10 A, are placed parallel to each other with a separation of 4 cm among them as shown in figure. Find the magnetic field B a
definition off terminal velocity
It describes that the total energy (pressure energy, potential energy and kinetic energy) of an incompressible and non-viscous fluid in steady flow by a pipe remains constant throu
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