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Bohr given a model for hydrogen molecule which is also applicable for some lighter atoms in which a one electron revolves around a stationary nucleus of positive charge Ze (known as hydrogen like atom)
Bohr's model is based on the following postulates.
(i) The electron can revolve only in particular discrete non-radiating orbits, named stationary orbits, for which total angular momentum of the revolving electrons is an integral multiple of
If 10 joules of energy are required to move 5 coulombs of charge between two points, the potential difference between the two points is equal to how many volts? Ans: If 10 j
For the circuit shown in Figure, calculate the current flowing in the 50Ω load and the voltage drop across the load when (a) XS is 3/5 of XY (b) point S coincides with point
Angle of Minimum Deviation: The angle of deviation has least value when incident ray and emergent ray make equivalent angle with the normal. The value of angle of deviation is
When a small size magnet is laid in two uniform magnetic fields and which are at right angles to each other, the magnet comes to rest at an angle Φ with respect to B h like that
#questi1. A sound with a frequency of 261.6 Hz travels through water at a speed of 1435 m/s. What is the wavelength of the wave? a. 1.83 x 10 -1 m b. 3.753 x 10 5 m c. 5.486 m
A 30-g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car?
Two straight, parallel, current carrying conductors are kept at a distance from each other, in air. The direction of present in both the conductors is the same. Find the magnitude
CONSERVATION OF ENERGY 1. Potential energy is, as the word suggests, the energy "locked up" up somewhere and which can perform work. Potential energy Potential energy can b
(Assume the metallic ball is spherical with a diameter d = 2.5 cm. Let''s also assume it is made out of nickel, which has a density of roughly 9 g/cm 3 .) After it first touches
Second law of black hole dynamics Along with black-hole interactions, or interactions among normal matter and black holes, the total of the surface areas of all black holes i
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