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Find amplitude of electric field ina parallel beam of light of intensity 2W/m2Ans:Given that intensity I=power/area=2W/M2by using this formula :intensity I=(Emax^2/2c mue not)from that Emax=magnitude of electric fieldc=velocity of light=3*10^8m/secmue not =4pi*10^-7Emax=38.82 N/m
It appears the intensity will be maximized at that positions where path dissimilarity is an integral multiple of wavelength these points are called as points of constructive inter
How do I make a terrestrial telescope?
Q. Movement of principal ray? In every case a principal ray moves from the head of the object to the plane of the lens. It passes through the plane of the lens as well as conti
what is a dual power supply?
A 100V battery is linked across a resistor and causes a current of 5mA to ?ow. Verify the resistance of the resistor. If the voltage is now decreased to 25V, what will be t
When two objects A and B are in thermal equilibrium with a third object (C) independently, then they (i.e. A and B) are in thermal equilibrium equally i.e. Therefore, the t
why a metal disc is thrown up when it is placed on the top of an electromagnet is the current is switched on?
(1) These rays transmitted in the forward direction of medium with a finite speed. (2) Energy and momentum are transmitted in the direction of propagation of waves without real
Q. Write any three applications of laser in industry. Industrial applications (i) The laser beam is utilized to drill extremely fine holes in diamonds hard sheets etc.
A steel wire in a piano has a length of 0.6000 m and a mass of 3.600 10 -3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to
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