Recently Active Physics Questions

Q1. HCV example 18.... given: dipole moment = 3.4*10-30C-m... separation = 10-10m .. find mag. of charge.. simple q = D/d = 3.4*10-20C doubt is how can q have charge less than proton ? Q2. A positive charge q is placed in fro ...

A circuit consists of a permanent source of emf E,a resistor R and a capacitance C connected in series.At t=0,the capacitance of capacitor jumprised abruptly by factor n.Find current in circuit as function of time (Internal r ...

An indirectly heated filament is radiating maximum energy of wavelength 2.16*10-5cm Find the net amount of heat energy lost per second per unit area. the temperature of surrounding air is 13°C .Assuming it as black body .Giv ...

*Image* a conducting wire is bent in d form of a loop as shown. the segments AOB is parabolic given by the eqn y^2 =2x while segment BA is a straight line parallel to the y-axis. the magnetic field in the region is B= - 8 k^ ...

*Image* the voltage time graph is shown. The rms value for the graph is a)V b)V/√2 c)V√(7/24) d)V√(3/8) ...

Q.1 Find B(x,y) in case I so that VA-VB is same for both rods... *Image* AB=L OB=L ..edited.. :p They are pulled by some means with given speed perpendicular to length of rod.. Note:Take only one line in copy at max or no cop ...

Q1.A string of bob is attached to a block kept on frictionless surface (bob is hanging ) an impulse is imparted to bob to give it velocity v0 describe motion of block. ...

while calculating the amount of the sun's radiation reaching the earth's surface, should we take the earth to b a disc or a sphere?? how 2 be assured that the asuumptions taken are correct?? ...

I want 2 know which book do i follow for base as well as advanced knowledge of physical and organic chemistry ...

Q Four tuning forks of frequencies 200,201,204,206 Hz are sounded together . the beat frequeny will be?? ...

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A thin uniform hemispherical bowl of mass m and radius R is lying on a smooth horizontal surface,A horizontal force F is applied perpendicular to the rim of the bowl,what is the instantaneous angular acceleration of the bowl? ...

A complex circuit consists of some resistors. An ideal current source is then connected through two points at the circuit. Then an ideal voltmeter is connected to two nodes of a resistor in the circuit. Reading of the voltmet ...

a wave travels uniformly in all directions frm a pt source in an isotropic medium .the displacement of the medium at any pt at a distance r frm d source may be represented as(a isa constant representing strength of source ) ( ...

*Image* two blocks are kept on a smooth horizontal table.... they are interconnected by an ideal spring of spring constant k..... A force is aplied as shown....... findthe max. compression of the spring. Ans: 2m1F/(k(m1+m2)) ...

a plane wave y=A sin ω[t-x/v] undergo a normal incidence on a plane boundary separating medium M1 n m2 and splits into a reflected n transmitted wave having speed v1 and .comment on phase of transmitted n reflected wave ,ll ...

a closd orga n pipe of radius r1 and an open organ pipe of radius r2 and having same length L resonate when excited with a tuning fork .closed organ pipe resonates in its fundamental mode an open in first overtone then (a)r2- ...

if l1 n l2 are the length of the air columns for the first n second resonance when a tuning fork of frequency n is sounded on a resonance tube then the distance of displacemnt antinode frm the top end of resonance tube (a)2(l ...

in a test of subsonic jet flies qver head at an altitude of 100 m the sound intensity on the ground as the jet passes overhead is 160 db .At wha let altitude shud d plane fly so that noise isss than 120 db ans 10 km plz expla ...

a sufficiently long organ pipe has a small hole at the bottom.initially the pipe is empty .water is poured into the pipe at the constant rate .the fundamental frequency of air column in d pipe (a)cont increase (b)first increa ...

In a Young’s double slit experiment, the separation between the two slits is d and the wavelength of the light is λ. The intensity of light falling on slit 1 is four times the intensity of light falling on slit 2. Choose t ...

Consider a elevator accelerating upward with 2.4m/s2. Inside the elevator there is a ball of mass 1kg tied to the ceiling using a massless string. The elevator travels 30m up and then the string breaks and the ball is let loo ...

define and tell the relations and differerce between(many of them are same) them magnetic field magnetic field intensity magnetic intensity magnetic field strength H-field Intensity of magnetisation magnetic flux magnetic flu ...

An electric lamp which runs 100V dc & comsumes 10A current is connected to ac mains at 150V, 50Hz cycles with a choke coil in series. Calculate the inductance and drop of voltage across the choke. Neglect resistance of choke. ...

*Image* a ray incident at an angle 53° on a prism emerges at an angle of 37° as shown .if the angle of incidence is made 50° then value of angle of emergence a 35 b 42 c 40 d 38 ...

an electric lamp which runs at 100 V dc and consumes 10 A current is connected to the ac mains at 150 V , 50 Hz cycles with a choke coil in series .. Calculate the inductance and drop of voltage across the choke. neglect the ...

A small ball of mass m is released from a height R above the surface ot the earth surface as shown. If the maximum depth of the ball to which it goes into the earth is R/2 through a narrow grove before coming to rest momentar ...

*Image* A heavy string istied atone end to amoveable support and to a light string at the other end as shown. he string goes oer a puley(fixed) & supports a weight to prouce a tenion. The lowest frequency with which the heavy ...

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