Unanswered Physics Questions

a monochromatic flux from a remote source with a wavelength λ is almost normally incident on a thin glass wedge.a screen is placed at a distance `d` from the wedge.a lens with a focal length `f` projects the interference pat ...

plz guys i'm literally dumb in optics.. suggest me... ...

*Image* A thin ring made of a magnetic material of permeability has a mean diameter d and supports a winding of N turns. The crosssectional area of the ring is equal to S. The ring has a cross-cut of width b such that b < ...

wat is surface tension is it netforce acting per unit length can u please show me the force acting on a thin blade when placed it on the surface of the water please explain the excess pressure inside the air bubble and an air ...

A small disc A is placed on an inclined plane forming an angle α with the horizontal and is imparted an initial velocity v0.Find how the velocity of the disc depends on the angle φ if the friction coefficient k=tanα. a ...

Two cars are driving on the road with velocity v.One of them accelerates to 2v.In the Earths reference frame its kinetic energy has changed to 3mv2/2. In the frame of the second car, its energy has changed by mv2/2.The amount ...

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Moisture condenses at the constant rate l units of mass per unit time on a falling raindrop. If the drop falls from rest and has initial mass M, find the distance it has fallen in time t. Neglect air resistance. ...

CLACULATE THE RADII OF THE FRENSEL ZONES OF A SPHERICAL WAVE WITH A RADIUS a FOR POINT B REMOVED BY A DISTANCE OF a+b FROM A SOURCE OF MONOCROMATIC WAVES WITH A LENGTH OF λ,BEARING IN MIND THAT a>>λ ,, b>>λ. ...

topic closed....... ...

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the line of action of the resultant of two like parallel forces shifts by one-fourth of the distance between the forces when the two forces are interchanged The ratio of the two forces ...

a uniform rod pivoted at its upper end hangs vertically It is displaced through an angle of 60° and then released Find the magnitude of force acting on a particle of mass dm at the tip of the rod when the rod makes an angle ...

the length of the day from today when the sun is directly overhead till tomorrow again when the sun is directly overhead can be determined by revolution of earth around the sun Please explain how is it correct ...

*Image* in the given circuit each cell has a internal resistance of 1 ohms. find out the potential difference across the 2 V cell ...

http://www.tutorvista.com/content/physics/physics-i/measurement-and-experimentation/micrometer.php iT TEACHES EVERYTHIN ABT THESE TWO INSTRUMENTS N MANY OTHERS AS WELL ...

two thin parallel slits are made in an opaque sheet of film when a monochromatic beam of light is shone through them at normal incidence , the first bright fringes in the transmitted light occur at 45° (both sides of central ...

wat is the basic concept of max power generation and relation b/w r shunt n r load ...

1) a drop of water of mass 0.2 g is placed between two glass plates The distance between them is 0.01 cm Find the force of attraction between the plates if surface tension of water =0.07N/m-1 2)If p is the pressure of a gas i ...

a straight copper wire or a circular copper loop carrying a constant current will it produce electic field and experience electric force a circular loop carrying a uniform density of charge will it produce magnetic field in t ...

Three concentric metallic shells A,B, C of radius a,b,c a< b <c have surface chrge densities of σ,-σ, σ respectively Find the potential of the three shells A,B, C if shell A and C have the same potential then find th ...

A nucleus with mass no. 220 initially at rest emits an alpha particle.If Q value of reaction =5.5MeV ,then calculate KE of alpha particle ...

*Image* C1 is 2pF C2 is 3pF V1 is 30V V2 is 20V What will be the potential difference of both capacitor when (i) S1 is closed (ii) S3 is closed (iii) S1 & S2 is closed (iv) S1 & S3 is closed ...

Can anybody explain me HCV ques. no. 34 from the chapter sound waves?? ...

A Li7 target is bombarded with a proton beam current of 10-4A for 1 hour to produce Be7 with an activity of 1.8 *108 disintegrations per second . assuming that one Be radioactive nucleus is produced by 1000 protons bobarding ...

*Image* the midle plate is earthed ,find the charges on both sidesof each plate ...

THE MAXIMUM VALUE OF INDEX OF REFRACTION OF A MATERIAL OF A PRISM WHICH ALLOWS THE PASSAGE OF LIGHT THROUGH IT WHEN THE REFRACTING ANGLE OF THE PRISM IS 'A' IS a)(1-sinA/2)^1/2 b)(1-cotA/2)^1/2 c)(1-(tanA/2)^2)^1/2 d)(1+(cotA ...

You are at one end of long airport runway. A vertical temperature gradient in the air results in the refractive index variation with height as n = n1( 1+ ay) where n1 is the refractive index at the runway a = 1.5 * 10^(-6) pe ...

p.d = V is applied between 2 coaxial conducting pipes of radii a and b , with b>a. the pipes are made of non magnetic material. a long straight wire current I is fixed along the axis of the 2 pipes. an electron leaves the ...

1.A metre scale made of steel reads accurately at 20degrees C. In a sensitive experiment distances accurate upto 0.055mm in 1m are required. Find the range of temp in which the experiment can be performed with this metre scal ...