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A Decibel meter reads 140 dB for a sound source at 20''c at 60 % relative humidity. It also records sound pressure for 140 dB as 200 pascals what will it read( decibel meter) at 4
what is mirage
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)
The wave nature of light is demonstrated by which of the following a) The photoelectric effect b) Colour c) The speed of light d) Diffraction Ans: The w
If the angle of incidence is 60 degrees,then what is the angle of deviation?
Questions: Regard as two positively charged particles at a separation of 2.0 cm. One of the charged particles is shifting toward the other charged particle with a speed of 15 m
Q. Explain the Law of Machines? Answer:- Machines which are utilized to lift a load are governed by the Law of machines which states that the effort to be applied on the m
Q State Kirchoff's first law in electricity? Kirchoff's first law (current law) the algebraic total of the currents meeting at any junction in a circuit is zero. This law
Why we are showing work done over a closed path is zero to prove that electrostatic forces are conservative
Can you please explain me about working mechanism of X-Ray mechaine
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