Newtons laws of motion
Briefly illustrate all the Newton s laws of motion?
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The Newton's laws of motion are as follows:
a) The body at rest will remain at rest and the body in motion will always remain in motion, until and unless acted on by the external force. (That is, Law of inertia)
b) The rate of change of momentum of a body is proportional to the resulting force acting on the body in similar direction as its motion. (That is, F = ma)
c) For all action there is an equal and opposite reaction.
Pseudoforce: The "force" that arises as an observer is plainly treating an accelerating frame as an inertial one.
Planck radiation law: The law which explained blackbody radiation better than its precursor, therefore resolving the ultraviolet catastrophe. This is based on the supposition that electromagnetic radiation is quantized. Q : Radioactive dating-Determining of age In the radioactive dating we use half life to find out the age of a sample however not average life why? Describe.
In the radioactive dating we use half life to find out the age of a sample however not average life why? Describe.
Describe in brief the concept of nuclear reaction?
Roche limit: The position about a massive body where the tidal forces due to the gravity of the primary equivalent or exceed the surface gravity of a specified satellite. Within the Roche limit, such a satellite will be interrupted by tides.
Brewster's law (D. Brewster) - The extent or level of the polarization of light reflected from a transparent surface is maximum whenever the reflected ray is at right angle to the refracted ray.
Briefly explain the procedure to define the Specific Gravity?
Stern-Gerlach experiment (O. Stern, W. Gerlach; 1922): The experiment which explains the features of spin (that is intrinsic angular momentum) as a different entity apart from the orbital angular momentum.
Pfund series: The series that explains the emission spectrum of hydrogen whenever the electron is jumping to the fifth orbital. Each line is in the infrared part of the spectrum.
Dielectric is a material in which energy can be accumulated. Ideally, it is a non-conductor of electric charge like insulators, but an efficient supporter of electrostatic fields. The
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