45406 + Interview Questions in Physics in Class 12 Page 834 InterviewSolution

41651.	A cart loaded with sand moves along a horizontal plane due to a constant force F coinciding in direction with the cart's velocity vector. In the process, sand spills through a hole in the bottom with a constant velocity mu kg/s. Find the acceleration of the cart at the moment t, if at the initial moment t = 0, the cart with the loaded sand has a mass m, and its velocity was equal to zero. The friction is to be neglected.
Answer» `(F)/(m_0 - MU t)` `(m_0 - mu t)/(F)` `(m_0 + mu t)/(F)` `(F)/(m_0 + mu t)` ANSWER :A

Discussion

41652.	The volume of thin brass vessel and the volume of a solid cube are both equal to 1 litre. What will be the change in the volumes of the vessel and the cube upon being heated to 25^(@) C ? (Given alpha for brass = 1.9 xx 10^(-5) ""^(@) C^(-1))
Answer» Solution :`Delta V = V (3 alpha) Delta T` `= (10^(-3)) ( 3 xx 1.9 xx 10^(-5) ) (25) xx 10^(6) cm^(3)` `because` 1 litre = `10^(-3)m^(3)= 10^(3) cm^(3) = 1.425 cm^(2)`

Discussion

41653.	What is 'myopia' ? How to rectify it?
Answer» Solution : Myopia : It is a defect in human EYE where the image of the object is formed in front of the RETINA. It can be CORRECTED using a CONCAVE lens.

Discussion

41654.	A magnometer is kept perpendicular to magnetic meridian in Tan A position
Answer» To MAKE the AXIS of magnet and MAGNETIC meridian parallel To make the INSTRUMENT look beautiful To make the axis of magnet and magnetic meridian perpendicular Just for convenience Answer :C

Discussion

41655.	The nuclear force between two protons, two neutrons and between a proton and a neutron is denoted by f_(pp),f_(n n) and f_(pn) respectively, then
Answer» `f_(PP)=f_(N n)nef_(pn)` `f_(pp)nef_(n n)=f_(pn)` `f_(pp)=f_(n n)=f_(pn)` `f_(pp)nef_(n n)nef_(pn)` ANSWER :C

Discussion

41656.	The electrical potential at a point (x, y, z) is given by V=-x^2y-xz^3+4.The electric field gt that point is :
Answer» `oversetrightarrowE=i(2xy-z^3)+jky^2+k3z^2x` `oversetrightarrowE=i(2xy+z^3)+jx^2+k3z^2` `oversetrightarrowE=i2xy+j(x^2+y^2)+K(3xz-y^2)` `oversetrightarrowE=iz^2+jxyz+kz^2` ANSWER :B

Discussion

41657.	Using Huygens principle draw the diagrams to show the nature of the wavefronts when an incident plane wavefront gets (i) reflected from a concave mirror, (ii) refracted from a convex lens.
Answer» SOLUTION :

Discussion

41658.	In a solenoid number of turns are N and a current I is passing through it. If diameter of the selenoid is D. find out the energy per unit length in the selenoid.
Answer» Solution :Energy density `E=(B^(2))/(2mu_(0))` `B=(mu_(0)NI)/(L)` Energy per meter = Energy density `XX` Area

Discussion

41659.	An infinite line charge produces a fiels of 9xx10^(4) N/C at a distance of 2 cm. calculate the linear charge density.
Answer» Solution :(a) `1.45 xx10^(-3) C` (b) `1.6 xx10^(8) NM^(2)//C`

Discussion

41660.	A point of object is placed at a distance 25 cm from a convex lens of focal length 20 cm. If a glass sla of thickness and refractive index 1.5 is inserted between the lens and object, image is formed at. Thickness t is found to be K times of 5 cm. Find K.
Answer» ANSWER :3

Discussion

41661.	A given magnet has a polestrength p and dipole moment m . What is the dipole moment of a magnet obtained by cutting this magnet two identical pieces perpendicular to its length ?
Answer» Solution :When cut into two equal halves perpendicular to its LENGTH, length of each PIECE = L and pole-strength is p. `therefore m^1 =p xx l = (p xx 2L)/2` = m/2. `therefore` dipole moment is HALVED.

Discussion

41662.	Find the force experienced by a chloride ion having 4 electrons removed, when placed in an electric field of intensity 2NC^(-1).
Answer» SOLUTION :The force experienced by chloride ion is `F= qE = +(4 xx 1.6 xx 10^(-19)) xx (2)` `=+12.8 xx 10^(-19)N`

Discussion

41663.	A hollow chargedconductor has a tiny hole cut in toits surface show that the electricfield in the hole is n where n is the charge density near the hole
Answer» Solution :(a) hindchoose a GAUSSIAN surface LYING wholly within the conductor and enclosing the cavity (b)GAUSS ALW on the samesurfaceas in (a) shows that Q mustinduce q on the innersurface of the conductor (c ) enclose the instrumentfully by a metallinc surface

Discussion

41664.	The surface of a metal is illuminated with the ight of 400nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is: (hc=1240 eV. nm)
Answer» 1.41 eV 1.51 eV 1.68 eV 3.09 eV Answer :A

Discussion

41665.	The galvanometer constant of a tangent galvanometer depends upon :
Answer» `I =K SIN THETA` `I =K TAN theta` `I= K COS theta` `I = K cot theta` Answer :B

Discussion

41666.	A plano convex lens fits exactly in to a plano concave lens. Their plane surfaces are parallel to each other. If the lenses are made of different materials of refractive indices mu_1 andmu_2 and 'R' is the radius of curvature of the curved surfaces of the lenses then the focal length of the combination is
Answer» `(R )/(mu_1 - mu_2)` `(2R)/(mu_1 - mu_2)` `(R )/(2(mu_1 - mu_2))` `( R)/(mu_1 + mu_2)` ANSWER :A

Discussion

41667.	A given magnet has a polestrength p and dipole moment m . What is the dipole moment of a magnet obtained by cutting this magnet two identical pieces along its length ?
Answer» Solution :When CUT into EQUAL HALVES along the length , length of each piece = 2L and pole-strength is p/2 , dipole moment is halved.

Discussion

41668.	The first experimental evidence of the existence of electromagnetic waves was provided by:
Answer» J.C.Bose Hertz Maxwell Marconi Answer :B

Discussion

41669.	Transistor can be used as
Answer» OSCILLATOR ELECTRONIC switch Amplifier All the above ANSWER :D

Discussion

41670.	अनंत लंबाई वाले आवेशित बेलनाकार चालक के अक्ष से r दूरी पर विद्युत क्षेत्र होगा -
Answer» `LAMBDA/(piepsilon_0.r)` `lambda/(2piepsilon_0.r)` `lambda/(4piepsilon_0.r)` `lambda/r` ANSWER :B

Discussion

41671.	Radius of curvature of a convex curved surface is 50 cm. If refractive index of medium is 1.5, then find 1st and 2nd focal length.
Answer» -100 CM, 150 cm -150 cm, 100 cm 100 cm, -150 cm 150 cm, -100 cm Solution :`f_1=-(R)/(n-1)=-(50)/(1.5-1)=-100` cm `f_2=-(NR)/(n-1)` `=((1.5)(50))/(1.5-1)=150` cm

Discussion

41672.	Formula of Quick Lime is......
Answer» `СаO` `CA(OH)_2` `CO_2` `O_2` ANSWER :A

Discussion

41673.	A car is moving with a speed of the 72 Kmh^-1 towards a hill. Car blows horn at a distance of 1800 m from the hill. If echo is heard after 10 s.the speed of sound ("in" ms ^-1) is
Answer» 300 320 340 360 Answer :C

Discussion

41674.	Train A and B are approaching towards each other on a parallel track 99 m apart at t = 0 their position are shown. Train A whistles a short pulse of frequency of 596 Hz. Velocity of sound is 330 m/s.
Answer» ANSWER :A-s; B-r; C-q; D-p

Discussion

41675.	In the above question, the ratio of masses of the charge particles q_1,q_2, and q_3 is
Answer» `1:1:1` `q_1:q_2:q_3` `1:sqrt3:2` This ratio cannot be calculated SOLUTION :SINCE magnitude of FORCES is proportional to `m` as `f-mv^(2)//r,m_(1):m_(2):m_(3)=1:sqrt(3):2`.

Discussion

41676.	The velocity versus time curve of a moving point is as given ahead: The maximum acceleration is :
Answer» `1 m//s^(2)` `2 m//s^(2)` `3 m//s^(2)` `4 m//s^(2)` Solution :Maximum acceleration is in PORTION BC ACCLERATION =slope of v-t GRAPH `=(60-20)/(40-30)` `=4 m//s^(2)`

Discussion

41677.	The angular speed of minute hand of a clock is
Answer» `1.74xx10^(-3)`rad/sec `1.94xx10^(-3)`rad/sec `1.80xx10^(-3)`rad/sec `1.80xx10^(-2)`rad/sec Answer :A

Discussion

41678.	Accordingto theclassicalelectromagnetictheory, calculatethe initialfrequencyof thelightemittedby theelectronrevolingarounda protoninhydrogenatom .
Answer» Solution :Fromsolvedexample1,velocityof electronmovingarounda protoninhydrogenatomin anorbitor radius`5.3 xx 10 ^(-11)m ` ISIS`2.2 xx 10^6m//s` ` epsilon= (v )/(2 pir )= ( 2.2xx 10^6 ms^(-1))/( 2 pi( 5.3 xx 10^(-11)m))= 6.6 xx 10^(15) Hz` ACCORDINGTO theclassicalelectronmagnetictheory, THEFREQUENCYOF theelectromagnetic wavesemittedby therevolvingelectrons isequal tothefrequnecyof itsrevolutionaroundthenucleusthustheinitialfrequencyofthelightemitted is ` 6.6 xx 10^(15) hz`

Discussion

41679.	(A ): Environmental damage has increased the amount of ozone in the atmosphere. (R) : Increase of ozone increases the amount of UV radiation on Earth
Answer» Both 'A' and 'R' are TRUE and 'R' is the CORRECT EXPLANATION of 'A'. Both 'A' and ’R' are true and 'R' is not the correct explanation of 'A A' is true and 'R' is FALSE 'A' is false and R' is true Answer :D

Discussion

41680.	When a p - n junction is reverse-biased, the current becomes almost constant at 25 mu A. When it is forward-biased at 200mV, a current of 75mu Ais obtained. Find the magnitude of diffusion current when the diode is a) unbiased b) reverse-biased at 200mV and c) forward-biased at 200mV
Answer» `50 MU A, `ZERO, `100 mu A` `25 mu A`, Zero, `100 mu `A `25 mu A,10 mu A, 100 mu `A `25 mu A,10 mu A`, Zero Answer :B

Discussion

41681.	Radio waves are electromagnetic waves used for communication purpose. Name the mode of propagation used for radio waves of frequencies ranging from 30-40 MHz.
Answer» SOLUTION :Space wave propogation (TELEVISION broad casting)

Discussion

41682.	A weight lies on a rough horizontal surface. It is found that a force F gives it an acceleration of 4ms^(-2) and when force is doubled the acceleration becomes 4 times, if g=10ms^(-2). What is coefficient of kinetic friction?
Answer» 0.2 0.4 0.6 0.8. Answer :D

Discussion

41683.	A charged particle with charge q enters a region of constant, uniform and mutually orthogonal fields vecE and vecB with a velocity vecv perpendicular to both vecE and vecB, and comes out without any change in magnitude or direction of vecv. Then
Answer» `vecv=vecBxxvecE//B^(2)` `vecv=vecExxvecB//E^(2)` `vecv=vecBxxvecE//E^(2)` `vecv=vecExxvecB//B^(2)` Solution :`vecv=(vecE xx vecB)/(B^(2))` `rArr v=(EB SIN 90^(@))/(B^(2))` `:. V=(EB)/(B^(2))=(E)/(B)`

Discussion

41684.	A rocket of initial mass 6000kg ejects mass at constant rate of 200 kg/sec. with constant relative speed of 800 m/sec. The acceleration of the rocket after 5 sec is (neglect gravity)
Answer» `50 m//s^(2)` `16 m//s^(2)` `60 m//s^(2)` `32 m//s^(2)` Answer :D

Discussion

41685.	The near vision of an average person is 25 cm To view an object with an angular magnification of 10, what should be the power of the microspcope ?
Answer» Solution :`rArr` For healthy human eye, near point is D = 25 CM `thereforev = D = 25 cm` `rArr` Here magnification m= 10 and object distanceu = f Now, `m = v/u = D/f` `thereforef = D/m = 25/10 = 2.5 cm ` `therefore=1/f = 1/ (2.5 xx 10^(-2)) = 40 D` (DIOPTRE)

Discussion

41686.	When vec(A).vec(B)=-\|A\|.\|B\| then :
Answer» `vec(A)` and `vec(B)` are PERPENDICULAR to each other `vec(A)` and `vec(B)` act in the same direction `vec(A)` and `vec(B)` act in the opposite direction `vec(A)` and `vec(B)` can act in any direction Solution :Here `Abcostheta=(\|A\|)(\|B\|)=-AB` `costheta=-1, theta=180^@` `vec(A)` and `vec(B)` are opposite to each other.

Discussion

41687.	Microwaves of frequency 24,000 MHz are incident normally on a rectengular on a rectangular slit of width 5 cm. Calculate the angular spread of the central maximum of the diffraction pattern of the slit.
Answer» ANSWER :`PM`1/4 RAD

Discussion

41688.	Consider sunlight incident on a pinhole of width 10^(3)Å. The image of the pinhold seen on a screen shall be
Answer» a sharp WHITE ring different from a geometrical image. a diffused CENTRAL SPOT, white in colour. diffused COLOURED region around a sharp central white spot. Answer :B::D

Discussion

41689.	Which of the following substances are paramagnetic ? Bi, Al, Cu, Ca, Pb, Ni
Answer» Solution :Out of GIVEN substances only AL and CA are PARAMAGNETIC.

Discussion

41690.	Two identical circular loops of metal wire are lying on a table without touching each other. Loop A carries a current which increases with time. In response, the loop B
Answer» REMAINS stationary Is attracted by the loop Is REPELLED by the loop A Rotates about its centre of mass with centre of mass FIXED ANSWER :C

Discussion

41691.	For transmitting audio signal properly:
Answer» It is first superimposed on high frequency CARRIER wave It is first superimposed on low frequency carrier wave It is sent DIRECTLY WITHOUT supermposing on any wave None of the above Answer :A

Discussion

41692.	A ray of light is incident on a glass slab of refractive index 1.5 making an angle of 40^@ with the surface. The angle of refraction in glass is :
Answer» `40^@` `30^@42'` `50^@` `60^@` ANSWER :B

Discussion

41693.	Which of the following transition in Balmer series for hydrogen atom will have longest wavelength
Answer» n=2 to n=1 n=6 to n=1 n=3 to n=2 n=6 to n=2 Answer :C

Discussion

41694.	In the young's double slit experiment, the intensities at two points P(1) and P_(2) on the screen are respectively I_(1) and I_(2). If P_(1) is located at the centre of a bright fringe and P_(2) is located at a distance equal to a quarter of fringe width from P_(1), then I_(1)/I_(2) is
Answer» 2 `1//2` 4 16 Answer :A

Discussion

41695.	In the given circuit, if initial charge on the capacitor is 100 muC, then the maximum current is (Initially, the inductor is fully deenergized)
Answer» 1 AMP 10 amp 0.5 amp 100 amp ANSWER :A

Discussion

41696.	An electric dipole of moment p is placed with its centre at the origin along the x-axis. The electric field at a point P, whose position vector makes an angle theta with the x-axis, will make an angle…….. with the x-axis, when tan alpha = (tan theta)//2
Answer» `ALPHA` `THETA` `theta + alpha` `theta + 2 alpha` ANSWER :C

Discussion

41697.	When a number of liquid drops each of surface charge density s and energy E combine, a large drop is formed. If the charge density of the large drop is 3s, its energy is
Answer» `81E ` `3E ` `27E ` `243E` ANSWER :D

Discussion

41698.	In the circuit shown the capacitors are C_1 = 15mu F , C_2 = 10 mu F and C_2 = 25 mu F . Find (i) The equivalent capacitance of the circuit (ii) The charge on each capacitor and (iii) The potential difference a across each capacitor.
Answer» Solution :(i) ` ( ( C_1+C_2)C_3)/( (C_1+C_2)+C_3) = ( ( 25xx25)/( 25+25)) MU F = 12.5mu F ` ` (##MOT_CON_JEE_PHY_C25_SLV_017_S01.png" WIDTH="80%"> (II)Q = Total charge supplied by the cell = CV = ` (12.5xx 10 ) mu C = 125 mu C ` charge on ` C_1 = Q_1 = ((C_1)/((C_1+C_2)) Q= ( ( 15)/( 15+10 ) ) XX 125 = 75 muC ` Charge on ` C_2 = Q_2 = ( ( C_2 )/( C_1+C_2)) Q= ( (10 )/( 15+ 10 )) xx 125 = 50 mu C ` (iii) p.d. across ` C_1 = V_1 = (Q_1 )/(C_1 ) = ( 75)/( 15) = 5V ` p.d. across `C_2 =V_2 V-1 = 5V ` p.d. across ` C_2 = V_2 =(Q_3)/(C_3) = (125)/( 25) = 5V `

Discussion

41699.	The terminology different parts of the electromagnetic spectrum is given in the text. Use the formula E = hv (for energy of a quantum of radiation : photon) and obtain the photon energy in units of eV different parts of the electromagnetic spectrum. In what way are the different scales of photon energies that you obtain related to the sources of electromagnetic radiation ?
Answer» Solution :Photon energy [for `lamda =1` m] `=(6.63xx10^(-34) xx3xx10^(8))/(1.6xx10^(-19)) eV=1.24 xx10^(-6) eV` Photon energy for other wavelengths in the figure for electromagnetic spectrum can be obtained by multiplying APPROXIMATE powers of ten. Energy of a photon that a source produces INDICATES the spacings of the relevant energy LEVELS of the source. For example, `lamda = 10^(-12) m` corresponds to photon energy `= 1.24 xx 10^(6) eV = 1.24 MeV`. This indicates that nuclear energy levels (TRANSITION between which causes γ-ray emission) are TYPICALLY spaced by 1 MeV or so. Similarly, a visible wavelength `lamda = 5 xx 10^(-7)` m, corresponds to photon energy = 2.5 eV. This implies that energy levels (transition between which gives visible radiation) are typically spaced by a few eV.

Discussion

41700.	A shell isfiredfrom a long - ragegun whichan intialvelocity u = 1000 ms^(-1) at an angle 30^(@) to the horizon. How long withthe shell be in the air ? At what distancefrom thegun will if fall to ground? The gun and the point where the shell landsare ont eh samehorizontal line .
Answer» SOLUTION :`102,s88400m`

Discussion

Explore topic-wise InterviewSolutions in .

The volume of thin brass vessel and the volume of a solid cube are both equal to 1 litre. What will be the change in the volumes of the vessel and the cube upon being heated to 25^(@) C ? (Given alpha for brass = 1.9 xx 10^(-5) ""^(@) C^(-1))

What is 'myopia' ? How to rectify it?

A magnometer is kept perpendicular to magnetic meridian in Tan A position

The nuclear force between two protons, two neutrons and between a proton and a neutron is denoted by f_(pp),f_(n n) and f_(pn) respectively, then

The electrical potential at a point (x, y, z) is given by V=-x^2y-xz^3+4.The electric field gt that point is :

Using Huygens principle draw the diagrams to show the nature of the wavefronts when an incident plane wavefront gets (i) reflected from a concave mirror, (ii) refracted from a convex lens.

In a solenoid number of turns are N and a current I is passing through it. If diameter of the selenoid is D. find out the energy per unit length in the selenoid.

An infinite line charge produces a fiels of 9xx10^(4) N/C at a distance of 2 cm. calculate the linear charge density.

A point of object is placed at a distance 25 cm from a convex lens of focal length 20 cm. If a glass sla of thickness and refractive index 1.5 is inserted between the lens and object, image is formed at. Thickness t is found to be K times of 5 cm. Find K.

A given magnet has a polestrength p and dipole moment m . What is the dipole moment of a magnet obtained by cutting this magnet two identical pieces perpendicular to its length ?

Find the force experienced by a chloride ion having 4 electrons removed, when placed in an electric field of intensity 2NC^(-1).

A hollow chargedconductor has a tiny hole cut in toits surface show that the electricfield in the hole is n where n is the charge density near the hole

The surface of a metal is illuminated with the ight of 400nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is: (hc=1240 eV. nm)

The galvanometer constant of a tangent galvanometer depends upon :

A given magnet has a polestrength p and dipole moment m . What is the dipole moment of a magnet obtained by cutting this magnet two identical pieces along its length ?

The first experimental evidence of the existence of electromagnetic waves was provided by:

Transistor can be used as

अनंत लंबाई वाले आवेशित बेलनाकार चालक के अक्ष से r दूरी पर विद्युत क्षेत्र होगा -

Radius of curvature of a convex curved surface is 50 cm. If refractive index of medium is 1.5, then find 1st and 2nd focal length.

Formula of Quick Lime is......

A car is moving with a speed of the 72 Kmh^-1 towards a hill. Car blows horn at a distance of 1800 m from the hill. If echo is heard after 10 s.the speed of sound ("in" ms ^-1) is

Train A and B are approaching towards each other on a parallel track 99 m apart at t = 0 their position are shown. Train A whistles a short pulse of frequency of 596 Hz. Velocity of sound is 330 m/s.

In the above question, the ratio of masses of the charge particles q_1,q_2, and q_3 is

The velocity versus time curve of a moving point is as given ahead: The maximum acceleration is :

The angular speed of minute hand of a clock is

Accordingto theclassicalelectromagnetictheory, calculatethe initialfrequencyof thelightemittedby theelectronrevolingarounda protoninhydrogenatom .

(A ): Environmental damage has increased the amount of ozone in the atmosphere. (R) : Increase of ozone increases the amount of UV radiation on Earth

When a p - n junction is reverse-biased, the current becomes almost constant at 25 mu A. When it is forward-biased at 200mV, a current of 75mu Ais obtained. Find the magnitude of diffusion current when the diode is a) unbiased b) reverse-biased at 200mV and c) forward-biased at 200mV

Radio waves are electromagnetic waves used for communication purpose. Name the mode of propagation used for radio waves of frequencies ranging from 30-40 MHz.

A weight lies on a rough horizontal surface. It is found that a force F gives it an acceleration of 4ms^(-2) and when force is doubled the acceleration becomes 4 times, if g=10ms^(-2). What is coefficient of kinetic friction?

A charged particle with charge q enters a region of constant, uniform and mutually orthogonal fields vecE and vecB with a velocity vecv perpendicular to both vecE and vecB, and comes out without any change in magnitude or direction of vecv. Then

A rocket of initial mass 6000kg ejects mass at constant rate of 200 kg/sec. with constant relative speed of 800 m/sec. The acceleration of the rocket after 5 sec is (neglect gravity)

The near vision of an average person is 25 cm To view an object with an angular magnification of 10, what should be the power of the microspcope ?

When vec(A).vec(B)=-|A|.|B| then :

Microwaves of frequency 24,000 MHz are incident normally on a rectengular on a rectangular slit of width 5 cm. Calculate the angular spread of the central maximum of the diffraction pattern of the slit.

Consider sunlight incident on a pinhole of width 10^(3)Å. The image of the pinhold seen on a screen shall be

Which of the following substances are paramagnetic ? Bi, Al, Cu, Ca, Pb, Ni

Two identical circular loops of metal wire are lying on a table without touching each other. Loop A carries a current which increases with time. In response, the loop B

For transmitting audio signal properly:

A ray of light is incident on a glass slab of refractive index 1.5 making an angle of 40^@ with the surface. The angle of refraction in glass is :

Which of the following transition in Balmer series for hydrogen atom will have longest wavelength

In the young's double slit experiment, the intensities at two points P(1) and P_(2) on the screen are respectively I_(1) and I_(2). If P_(1) is located at the centre of a bright fringe and P_(2) is located at a distance equal to a quarter of fringe width from P_(1), then I_(1)/I_(2) is

In the given circuit, if initial charge on the capacitor is 100 muC, then the maximum current is (Initially, the inductor is fully deenergized)

An electric dipole of moment p is placed with its centre at the origin along the x-axis. The electric field at a point P, whose position vector makes an angle theta with the x-axis, will make an angle…….. with the x-axis, when tan alpha = (tan theta)//2

When a number of liquid drops each of surface charge density s and energy E combine, a large drop is formed. If the charge density of the large drop is 3s, its energy is

In the circuit shown the capacitors are C_1 = 15mu F , C_2 = 10 mu F and C_2 = 25 mu F . Find (i) The equivalent capacitance of the circuit (ii) The charge on each capacitor and (iii) The potential difference a across each capacitor.

A shell isfiredfrom a long - ragegun whichan intialvelocity u = 1000 ms^(-1) at an angle 30^(@) to the horizon. How long withthe shell be in the air ? At what distancefrom thegun will if fall to ground? The gun and the point where the shell landsare ont eh samehorizontal line .