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The process of apparent change in frequency (or wavelength) of the light because of relative motion among the source of light and the observer is known as Doppler's effect.
Magnification is the ratio of size of image to the size of object. hence it is a dimensionless constant. It has no units. 1/m is not its unit.(1/m is the unit of power=DIOPTRE)
What are Newton s laws of motion? 1. A body at rest will stay at rest and one in motion will stay in motion, unless and unless acted upon by an external force. (Law of inertia)
Define the use of quartz crystal method to detect ultrasonic waves. Quartz crystal method: This method is based onto the principle of Piezo-electric effect. While one pair o
Potential barrier One either side of the junction, the region ‘D' becomes free from mobile charge carriers. That is on n-type side of D, no free electrons exist and on p-type s
Screw gauge works on the rule of screw. It has a linear scale called as the main scale, and another scale called as the circular scale. The circular scale can be moved by a head sc
Type 1 and type 2 superconductors: For one group of SUPERCONDUCTOR in which below H c is in the Meissner state, where it excludes all the magnetic flux from the interior of the
Determne the magnetic field due to a finit sraight wire of length 2l, carrying a steady current i. The point of interest P is l distance away from the middle point of wire O. So
To develop the correct mathematical explanation of the distribution of radiated energy of a blackbody with respect to wavelength for a given temperature. Planck found it essent
What is the Interference ? A single frequency light passing through a pair of closely spaced slits will show a pattern of vertical bands, due to alternating constructive and des
explain in detail the construction and working of a scientillation counter
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