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The most probable radius (in pm) for finding the electron He+ is:
(1) 0.0
(2) 52.9
(3) 26.5
(4) 105.8
Ans: (c)26.5
The atomic number of an element represents: (1) Number of neutrons in the nucleus (2) Number of protons in the nucleus (3)Atomic weight of element (4)Valency of el
Q. What are the differences between fringes obtained in Newton's ring experiment and those produced by a bi-prism. Difference between Bi-Prism Fringes and Newton's rings
o meteors of rest-mass 0.1 and 0.2 kg, respectively, collide. If the relative speed before collision is 0.1c and an observer sees them coming with an equal and opposite speed and s
defination of multples and sub multiples
A merry-go-round in the park has a radius of 2.6 m and a moment of inertia of 1773 kg.m 2 What is the mass of the merry-go-round?
(a) Two 40 g ice cubes are dropped into 220 g of water in a thermally insulated container. If the water was initially at25°C, and the ice came directly from a freezer at -15°C,what
Q. Collector current I c =20 mA and base current I b = 50 A. Find current gain β of a transistor. β = I C / I B = 20 X 10 -3 / 50 X 10 -6 = 400
the unit of force and length are doubled, the unit of energy will be
can a charge by any means, today, travel from a source to a sink wirelessly? Is there any technology to support it?
What do you mean by lateral shift? Derive a mathematical expression for lateral shift produced by a parallel sided glass slab for oblique incidence.
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