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Q. Select the pairs of isotopes, isobars and isotones from the following nuclei: 11 Na 22 , 12 Mg 24 , 11 Na 24 , 10 Ne 23 Isotopes are 11 Na 22 , 11
A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground. At the immediate the helicopter is 60 meters above the ground it rele
Q. Explain the wave nature of matter. De - Broglie Waves Theory According to De - Broglie hypothesis, particles like electron, proton, neutron etc. show wavelike properti
Imagine a small observer is positioned in front of the cork in your picture above. As the cork approaches, the observer measures the wavelength of the waves passing by. How does th
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?
Displacement: - The modification in position of a body in a particular direction is called as displacement. It is a vector function and its unit in SI system is meter. Distanc
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
what is the speed of light
LENZ’S LAW A change of flux in a closed circuit induces an emf and sets up a current. The direction of this current is such that its magnetic field tends to oppose the c
Write about the main features in which Fresnel and Fraunhoffer approaches of diffraction differ? Mention some (at least four) applications of diffraction.
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