50278 + Interview Questions in Physics

1.	Two particles A and B are moving with equal angular speed ω as shown in figure. At t=0, their positions are shown. Then, relative velocity −→vA−−→vB at t=π2ω is
Answer» Two particles $A$ and $B$ are moving with equal angular speed $ω$ as shown in figure. At $t = 0$ , their positions are shown. Then, relative velocity $_{A} -_{B}$ at $t = \frac{π}{2 ω}$ is

Discussion

2.	A solid block of volume V and density ρ5 floats on a liquid of density ρ. How much force should be applied over the block to completely submerge it under water? (Given: g=10 m/s2,ρ=103 kg/m3,V=10 m3)
Answer» A solid block of volume $V$ and density $\frac{ρ}{5}$ floats on a liquid of density $ρ$ . How much force should be applied over the block to completely submerge it under water? (Given: $g = 10 {m/s}^{2}, ρ = 10^{3} {kg/m}^{3}, V = 10 m^{3})$

Discussion

3.	The fraction of a floating object of volume V0 and density d0 above the surface of a liquid of density d will be
Answer» The fraction of a floating object of volume $V_{0} a n d d e n s i t y d_{0}$ above the surface of a liquid of density d will be

Discussion

4.	A cubical frame is made up of 12 identical rods as shown. Temperatures at points A and C are maintained at 75∘ C and –30∘ C respectively. From the options given below find the temperature at point E.
Answer» A cubical frame is made up of $12$ identical rods as shown. Temperatures at points $A$ and $C$ are maintained at $75^{\circ} C$ and $- 30^{\circ} C$ respectively. From the options given below find the temperature at point $E$ .

Discussion

5.	If vectors →A=3^i−^j+4^k and →B=2^i−λ^j+μ^k are parallel to each other, then the value λ and μ are (a) λ=83,μ=23 (b) λ=23,μ=83(c) λ=32,μ=38 (d) λ=38,μ=23
Answer» If vectors $\to A = 3^i -^j + 4^k$ and $\to B = 2^i - λ^j + μ^k$ are parallel to each other, then the value $λ$ and $μ$ are $(a) λ = \frac{8}{3}, μ = \frac{2}{3} (b) λ = \frac{2}{3}, μ = \frac{8}{3} (c) λ = \frac{3}{2}, μ = \frac{3}{8} (d) λ = \frac{3}{8}, μ = \frac{2}{3}$

Discussion

6.	A generator of negligible resistance having 1 p.u. voltage behind transient reactance is subjected to different types of faults when its neutral is solidly grounded.Type of fault Resulting fault current in p.u.L - L 2 p.uL- G 3 p.u.Then the value of zero sequence reactance (in p.u) is _________ 0.134
Answer» A generator of negligible resistance having 1 p.u. voltage behind transient reactance is subjected to different types of faults when its neutral is solidly grounded. Type of fault Resulting fault current in p.u. L - L 2 p.u L- G 3 p.u. Then the value of zero sequence reactance (in p.u) is _________ 0.134

Discussion

7.	An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into water. The reason for this is
Answer» An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into water. The reason for this is

Discussion

8.	If we shift a body in equilibrium from A to C in a gravitational field via path AC or ABC by a force F. Then
Answer» If we shift a body in equilibrium from A to C in a gravitational field via path AC or ABC by a force F. Then

8.

If we shift a body in equilibrium from A to C in a gravitational field via path AC or ABC by a force F. Then

Answer»

If we shift a body in equilibrium from A to C in a gravitational field via path AC or ABC by a force F. Then

Discussion

9.	four point charges -Q, -q, 2q and 2Q are placed one at each corner of the square. the relation between Q and q for which the potential at the centre of the squar is zero is:
Answer» four point charges -Q, -q, 2q and 2Q are placed one at each corner of the square. the relation between Q and q for which the potential at the centre of the squar is zero is:

Discussion

10.	The velocity of a particle of mass 2 kg moving along x-axis is given by v=2\sqrt x (where v is in m/s and x is in m). The work done by the force acting on the particle during its motion from x=2 m to x4=m is
Answer» The velocity of a particle of mass 2 kg moving along x-axis is given by v=2\sqrt x (where v is in m/s and x is in m). The work done by the force acting on the particle during its motion from x=2 m to x4=m is

Discussion

11.	14.A partcle is projected at a speed u at angle theeta with horizontal from ground. If it is at same height from ground at time t1 and t2, then it's average velocity in time interval t1 to t2 is A)0 b)usin theeta c)u cos theeta d)1/2(u cos Theeta)
Answer» 14.A partcle is projected at a speed u at angle theeta with horizontal from ground. If it is at same height from ground at time t1 and t2, then it's average velocity in time interval t1 to t2 is A)0 b)usin theeta c)u cos theeta d)1/2(u cos Theeta)

Discussion

12.	a conductor of resistance r is stretched to make its length increase by 1% then the percentage increase in the resistence is nearly . explain using the error method
Answer» a conductor of resistance r is stretched to make its length increase by 1% then the percentage increase in the resistence is nearly . explain using the error method

Discussion

13.	An aircraft executes a horizontal loop of of radius 1 km with a steady speed of 900 kmh−1. Its centripetal acceleration is
Answer» An aircraft executes a horizontal loop of of radius $1 km$ with a steady speed of $900 {kmh}^{- 1} .$ Its centripetal acceleration is

Discussion

14.	19.A beaker of circular cross section radius 4cm is filled with Hg up to height 10cm. Find the force exerted by the mercury on the bottom of the beaker
Answer» 19.A beaker of circular cross section radius 4cm is filled with Hg up to height 10cm. Find the force exerted by the mercury on the bottom of the beaker

Discussion

15.	The initial velocity of a particle moving along astraight line is 5 m/s and its retardation is 1 ms-2.The distance moved by the particle in fourth secondof its motion is
Answer» The initial velocity of a particle moving along a straight line is 5 m/s and its retardation is 1 ms-2. The distance moved by the particle in fourth second of its motion is

Discussion

16.	A man is travelling at 10.8 km h−1 on a rainy day. He holds an umbrella at an angle 37∘ to the vertical to protect himself from the rain which is falling vertically downwards. What is the magnitude of velocity of the rain?
Answer» A man is travelling at $10.8 {km h}^{- 1}$ on a rainy day. He holds an umbrella at an angle $37^{\circ}$ to the vertical to protect himself from the rain which is falling vertically downwards. What is the magnitude of velocity of the rain?

Discussion

17.	In series LCR circuit voltage leads the current when(Given that wo-resonant angular frequency) (1) w>wo (2) w
Answer» In series LCR circuit voltage leads the current when(Given that wo-resonant angular frequency) (1) w>wo (2) w

Discussion

18.	A charge Q is uniformly distributed over the surface of a right circular cone of semi-vertical angle θ and height h. The cone is uniformly rotated about its axis at angular velocity ω. The associated magnetic dipole moment will be:
Answer» A charge $Q$ is uniformly distributed over the surface of a right circular cone of semi-vertical angle $θ$ and height $h$ . The cone is uniformly rotated about its axis at angular velocity $ω$ . The associated magnetic dipole moment will be:

Discussion

19.	46.A Solid ball of density half that of water is dropped at t = 0 from a height of 20 m from the surface of water in a large and deep tank . It falls freely under gravity, then enters into water and then again reaches the water surface .The total time taken in this event is ( neglect viscosity of water and take g =10)
Answer» 46.A Solid ball of density half that of water is dropped at t = 0 from a height of 20 m from the surface of water in a large and deep tank . It falls freely under gravity, then enters into water and then again reaches the water surface .The total time taken in this event is ( neglect viscosity of water and take g =10)

Discussion

20.	Two Nicol prisms are oriented with their principal planes making an angle of 60∘. The percentage of incident unpolarized light which passes through the system is,
Answer» Two Nicol prisms are oriented with their principal planes making an angle of $60^{\circ}$ . The percentage of incident unpolarized light which passes through the system is,

Discussion

21.	If V1,V2,V3 are unitvectors such that V1+V2+V3=0 then
Answer» If V₁,V₂,V₃ are unit vectors such that V₁+V₂+V₃=0 then

Discussion

22.	When a mass M hangs from a spring of length L, it stretches the spring by a distance x. Now the spring is cut in two parts of length L3 and 2L3, and the two springs thus formed are connected to a straight rod of mass M which is horizontal in the configuration as shown in the figure. Find the stretch in each of the spring.
Answer» When a mass $M$ hangs from a spring of length $L$ , it stretches the spring by a distance $x$ . Now the spring is cut in two parts of length $\frac{L}{3}$ and $\frac{2 L}{3}$ , and the two springs thus formed are connected to a straight rod of mass $M$ which is horizontal in the configuration as shown in the figure. Find the stretch in each of the spring.

Discussion

23.	95. A force of 10 N� is applied on an object of mass 1 kg for 2s ,which was initially at rest.What is� the work done on the object by the force?
Answer» 95. A force of 10 N� is applied on an object of mass 1 kg for 2s ,which was initially at rest.What is� the work done on the object by the force?

Discussion

24.	What is the net flux of the uniform electric field through a cube of side 20 cm oriented so that its faces are parallel to the coordinate planes?
Answer» What is the net flux of the uniform electric field through a cube of side 20 cm oriented so that its faces are parallel to the coordinate planes?

Discussion

25.	A uniform circular disc M and radius R is placed on a rough horizontal surface.A light rod of length 2R is fixed to the disc at point A as shown. And force 3Mg/2 is applied at the other end. If u is the minimum value of coefficient of friction between disc and horizontal surface to just start pure rolling, then
Answer» A uniform circular disc M and radius R is placed on a rough horizontal surface.A light rod of length 2R is fixed to the disc at point A as shown. And force 3Mg/2 is applied at the other end. If u is the minimum value of coefficient of friction between disc and horizontal surface to just start pure rolling, then

Discussion

26.	A damped harmonic oscillator has a frequency of 5 oscillations per second. The amplitude drops to half its value for every 10 oscillations. The time it will take to drop to 11000 of the original amplitude, is close to,
Answer» A damped harmonic oscillator has a frequency of $5$ oscillations per second. The amplitude drops to half its value for every $10$ oscillations. The time it will take to drop to $\frac{1}{1000}$ of the original amplitude, is close to,

Discussion

27.	The radiation force experienced by a body exposed to radiation of intensity I0, assuming the surface of the body to be perfectly absorbing is
Answer» The radiation force experienced by a body exposed to radiation of intensity $I_{0}$ , assuming the surface of the body to be perfectly absorbing is

Discussion

28.	The optic axis of a thin equiconvex lens is the x – axis. The co-ordinates of a point object and its image are (−40 cm, 1 cm) and (50 cm, −2 cm) respectively. The lens is located at x= -n cm. Find n
Answer» The optic axis of a thin equiconvex lens is the x – axis. The co-ordinates of a point object and its image are ( $- 40 cm$ , $1 cm$ ) and ( $50 cm$ , $- 2 cm$ ) respectively. The lens is located at x= -n cm. Find n

Discussion

29.	wha is the difference between semiconductors and good and poor conductors?
Answer» wha is the difference between semiconductors and good and poor conductors?

Discussion

30.	A piece of copper of mass 106 g is dipped in a measuring cylinder containing water at 22 ml mark. The water rises to 35 ml mark. Find a) volume of the copper piece. b) density of copper.
Answer» A piece of copper of mass 106 g is dipped in a measuring cylinder containing water at 22 ml mark. The water rises to 35 ml mark. Find a) volume of the copper piece. b) density of copper.

Discussion

31.	9. Will the current following in AD via C is same as current flowing in branch? why or why not?
Answer» 9. Will the current following in AD via C is same as current flowing in branch? why or why not?

Discussion

32.	In Young’s double-slit experiment using monochromatic light ofwavelength λ, the intensity of light at a point on the screen wherepath difference is λ, is K units. What is the intensity of light at apoint where path difference is λ/3?
Answer» In Young’s double-slit experiment using monochromatic light ofwavelength λ, the intensity of light at a point on the screen wherepath difference is λ, is K units. What is the intensity of light at apoint where path difference is λ/3?

Discussion

33.	A certain p−n junction, having a depletion region of width 20 μm, was found to have a breakdown voltage of 100 V. If the width of the depletion region is reduced to 1 μm, during its production, then it can be used as a Zener diode for voltage regulation of
Answer» A certain $p - n$ junction, having a depletion region of width $20 μ m,$ was found to have a breakdown voltage of $100 V .$ If the width of the depletion region is reduced to $1 μ m,$ during its production, then it can be used as a Zener diode for voltage regulation of

Discussion

34.	A stone is dropped from a bridge and it reaches the ground in 4 seconds. The height of the bridge is
Answer» A stone is dropped from a bridge and it reaches the ground in $4$ seconds. The height of the bridge is

Discussion

35.	What are the rules of reflection?
Answer» What are the rules of reflection?

Discussion

36.	What is Relation of wavelengths of sound and light
Answer» What is Relation of wavelengths of sound and light

Discussion

37.	If time of flight of a projectile is 10 seconds. Range is 500 meters. The maximum height attained by it will be
Answer» If time of flight of a projectile is 10 seconds. Range is 500 meters. The maximum height attained by it will be

Discussion

38.	The mass of a specimen of a ferromagnetic material is 0.5 kg and its density is 8000 kg/m3. What is the energy equivalent area of hysteresis loop of alternating magnetizing field of frequency 100 Hz, if the hysteresis loss per second is 240×10−3 J/s?
Answer» The mass of a specimen of a ferromagnetic material is $0.5 kg$ and its density is $8000 {kg/m}^{3}$ . What is the energy equivalent area of hysteresis loop of alternating magnetizing field of frequency $100 Hz$ , if the hysteresis loss per second is $240 \times 10^{- 3} J/s$ ?

Discussion

39.	A particle is projected with velocity 2gh such that it crosses two walls of height h separated by 2h .What is the angle of projection?
Answer» A particle is projected with velocity 2gh such that it crosses two walls of height h separated by 2h .What is the angle of projection?

Discussion

40.	The total charge enclosed in an incremental volume of 2×10−9 m3 located at the origin isnC, if electric flux density of its field is found as D=e−xsin^i−e−xcosy^j+2z^k C/m2.
Answer» The total charge enclosed in an incremental volume of $2 \times 10^{- 9} m^{3}$ located at the origin is $nC$ , if electric flux density of its field is found as $D = e^{- x} sin^i - e^{- x} cos y^j + 2 z^k {C/m}^{2}$ .

Discussion

41.	TWO OBJECTS A AND B ARE MOVING WITH THE VELOCITY OF 5M/S AND 11M/S TOWARDS EACH OTHER, THEN WHAT IS THE MAGNITUDE OF RELATIVE VELOCITY OF OBJECT A WITH RESPECT TO B
Answer» TWO OBJECTS A AND B ARE MOVING WITH THE VELOCITY OF 5M/S AND 11M/S TOWARDS EACH OTHER, THEN WHAT IS THE MAGNITUDE OF RELATIVE VELOCITY OF OBJECT A WITH RESPECT TO B

Discussion

42.	The kinetic energy K of a particle moving along a circle of radius R depends on the distance covered as K=as2, where a is a constant. The force acting on the particle is
Answer» The kinetic energy $K$ of a particle moving along a circle of radius $R$ depends on the distance covered as $K = a s^{2},$ where $a$ is a constant. The force acting on the particle is

Discussion

43.	In a Young's double slit experiment, 16 fringes are observed in a certain segment of the screen when light of wavelength 700 nm is used. If the wavelength of light is changed to 400 nm, the number of fringes observed in the same segment of the screen would be
Answer» In a Young's double slit experiment, $16$ fringes are observed in a certain segment of the screen when light of wavelength $700 nm$ is used. If the wavelength of light is changed to $400 nm$ , the number of fringes observed in the same segment of the screen would be

Discussion

44.	If an alternating voltage is given by the equation, E=20sin(100πt) V, then calculate its value at time, t=1600 s.
Answer» If an alternating voltage is given by the equation, $E = 20 sin (100 π t) V$ , then calculate its value at time, $t = \frac{1}{600} s$ .

Discussion

45.	Find the effective value or rms value of an alternating current that changes according to the law (All quantities are in S.I. unit and symbols have their usual meaning) I=10, when 0<t<T/8; I=0, when T8<t<T2 I=-10, when T2<t<58T; I = 0, when 58T,t<T; I = 10, when T<t<98T
Answer» Find the effective value or rms value of an alternating current that changes according to the law (All quantities are in S.I. unit and symbols have their usual meaning) I=10, when $0 < t < T / 8; I = 0$ , when $\frac{T}{8} < t < \frac{T}{2}$ I=-10, when $\frac{T}{2} < t < \frac{5}{8} T$ ; I = 0, when $\frac{5}{8} T, t < T$ ; I = 10, when $T < t < \frac{9}{8} T$

Discussion

46.	a small sphere is charged to a potential of 50V and a big hollow sphere is charged to a potential of 100V electricity will flow from the smaller sphere to bigger when
Answer» a small sphere is charged to a potential of 50V and a big hollow sphere is charged to a potential of 100V electricity will flow from the smaller sphere to bigger when

Discussion

47.	the derivative of function f(x)= log e (2x) w.r.t t is
Answer» the derivative of function f(x)= log e (2x) w.r.t t is

Discussion

48.	A : On reflection of a pressure wave from a rigid boundary, the reflected and incident waves are in same phase. R : From a rigid boundary, a compression pulse reflects as a compression pulse and rarefaction pulse reflects as a rarefaction pulse. Options: Both Assertion & Reason are true and the reason is the correct explanation of the assertion Both Assertion & Reason are true but the reason is not the correct explanation of the assertion Assertion is true statement but Reason is false Wrong Both Assertion and Reason are false statements
Answer» A : On reflection of a pressure wave from a rigid boundary, the reflected and incident waves are in same phase. R : From a rigid boundary, a compression pulse reflects as a compression pulse and rarefaction pulse reflects as a rarefaction pulse. Options: Both Assertion & Reason are true and the reason is the correct explanation of the assertion Both Assertion & Reason are true but the reason is not the correct explanation of the assertion Assertion is true statement but Reason is false Wrong Both Assertion and Reason are false statements

Discussion

49.	Pressure exerted by 1 mole of methane in 0.25 litre container at 300 K using Van der Waal's equations?Given a=2.25 atm - L2/mol2b=0.05 L/mol
Answer» Pressure exerted by $1 mole$ of methane in $0.25 litre$ container at $300 K$ using Van der Waal's equations? Given $a = 2.25 {atm - L}^{2} / {mol}^{2}$ $b = 0.05 L/mol$

Discussion

50.	How does Jo want the story to end and why?
Answer» How does Jo want the story to end and why?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Two particles A and B are moving with equal angular speed ω as shown in figure. At t=0, their positions are shown. Then, relative velocity −→vA−−→vB at t=π2ω is

A solid block of volume V and density ρ5 floats on a liquid of density ρ. How much force should be applied over the block to completely submerge it under water? (Given: g=10 m/s2,ρ=103 kg/m3,V=10 m3)

The fraction of a floating object of volume V0 and density d0 above the surface of a liquid of density d will be

A cubical frame is made up of 12 identical rods as shown. Temperatures at points A and C are maintained at 75∘ C and –30∘ C respectively. From the options given below find the temperature at point E.

If vectors →A=3^i−^j+4^k and →B=2^i−λ^j+μ^k are parallel to each other, then the value λ and μ are (a) λ=83,μ=23 (b) λ=23,μ=83(c) λ=32,μ=38 (d) λ=38,μ=23

An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into water. The reason for this is

If we shift a body in equilibrium from A to C in a gravitational field via path AC or ABC by a force F. Then

four point charges -Q, -q, 2q and 2Q are placed one at each corner of the square. the relation between Q and q for which the potential at the centre of the squar is zero is:

The velocity of a particle of mass 2 kg moving along x-axis is given by v=2\sqrt x (where v is in m/s and x is in m). The work done by the force acting on the particle during its motion from x=2 m to x4=m is

14.A partcle is projected at a speed u at angle theeta with horizontal from ground. If it is at same height from ground at time t1 and t2, then it's average velocity in time interval t1 to t2 is A)0 b)usin theeta c)u cos theeta d)1/2(u cos Theeta)

a conductor of resistance r is stretched to make its length increase by 1% then the percentage increase in the resistence is nearly . explain using the error method

An aircraft executes a horizontal loop of of radius 1 km with a steady speed of 900 kmh−1. Its centripetal acceleration is

19.A beaker of circular cross section radius 4cm is filled with Hg up to height 10cm. Find the force exerted by the mercury on the bottom of the beaker

The initial velocity of a particle moving along astraight line is 5 m/s and its retardation is 1 ms-2.The distance moved by the particle in fourth secondof its motion is

A man is travelling at 10.8 km h−1 on a rainy day. He holds an umbrella at an angle 37∘ to the vertical to protect himself from the rain which is falling vertically downwards. What is the magnitude of velocity of the rain?

In series LCR circuit voltage leads the current when(Given that wo-resonant angular frequency) (1) w>wo (2) w

A charge Q is uniformly distributed over the surface of a right circular cone of semi-vertical angle θ and height h. The cone is uniformly rotated about its axis at angular velocity ω. The associated magnetic dipole moment will be:

Two Nicol prisms are oriented with their principal planes making an angle of 60∘. The percentage of incident unpolarized light which passes through the system is,

If V1,V2,V3 are unitvectors such that V1+V2+V3=0 then

95. A force of 10 N� is applied on an object of mass 1 kg for 2s ,which was initially at rest.What is� the work done on the object by the force?

What is the net flux of the uniform electric field through a cube of side 20 cm oriented so that its faces are parallel to the coordinate planes?

A damped harmonic oscillator has a frequency of 5 oscillations per second. The amplitude drops to half its value for every 10 oscillations. The time it will take to drop to 11000 of the original amplitude, is close to,

The radiation force experienced by a body exposed to radiation of intensity I0, assuming the surface of the body to be perfectly absorbing is

The optic axis of a thin equiconvex lens is the x – axis. The co-ordinates of a point object and its image are (−40 cm, 1 cm) and (50 cm, −2 cm) respectively. The lens is located at x= -n cm. Find n

wha is the difference between semiconductors and good and poor conductors?

A piece of copper of mass 106 g is dipped in a measuring cylinder containing water at 22 ml mark. The water rises to 35 ml mark. Find a) volume of the copper piece. b) density of copper.

9. Will the current following in AD via C is same as current flowing in branch? why or why not?

In Young’s double-slit experiment using monochromatic light ofwavelength λ, the intensity of light at a point on the screen wherepath difference is λ, is K units. What is the intensity of light at apoint where path difference is λ/3?

A certain p−n junction, having a depletion region of width 20 μm, was found to have a breakdown voltage of 100 V. If the width of the depletion region is reduced to 1 μm, during its production, then it can be used as a Zener diode for voltage regulation of

A stone is dropped from a bridge and it reaches the ground in 4 seconds. The height of the bridge is

What are the rules of reflection?

What is Relation of wavelengths of sound and light

If time of flight of a projectile is 10 seconds. Range is 500 meters. The maximum height attained by it will be

The mass of a specimen of a ferromagnetic material is 0.5 kg and its density is 8000 kg/m3. What is the energy equivalent area of hysteresis loop of alternating magnetizing field of frequency 100 Hz, if the hysteresis loss per second is 240×10−3 J/s?

A particle is projected with velocity 2gh such that it crosses two walls of height h separated by 2h .What is the angle of projection?

The total charge enclosed in an incremental volume of 2×10−9 m3 located at the origin isnC, if electric flux density of its field is found as D=e−xsin^i−e−xcosy^j+2z^k C/m2.

TWO OBJECTS A AND B ARE MOVING WITH THE VELOCITY OF 5M/S AND 11M/S TOWARDS EACH OTHER, THEN WHAT IS THE MAGNITUDE OF RELATIVE VELOCITY OF OBJECT A WITH RESPECT TO B

The kinetic energy K of a particle moving along a circle of radius R depends on the distance covered as K=as2, where a is a constant. The force acting on the particle is

In a Young's double slit experiment, 16 fringes are observed in a certain segment of the screen when light of wavelength 700 nm is used. If the wavelength of light is changed to 400 nm, the number of fringes observed in the same segment of the screen would be

If an alternating voltage is given by the equation, E=20sin(100πt) V, then calculate its value at time, t=1600 s.

Find the effective value or rms value of an alternating current that changes according to the law (All quantities are in S.I. unit and symbols have their usual meaning) I=10, when 0&lt;t&lt;T/8; I=0, when T8&lt;t&lt;T2 I=-10, when T2&lt;t&lt;58T; I = 0, when 58T,t&lt;T; I = 10, when T&lt;t&lt;98T

a small sphere is charged to a potential of 50V and a big hollow sphere is charged to a potential of 100V electricity will flow from the smaller sphere to bigger when

the derivative of function f(x)= log e (2x) w.r.t t is

Pressure exerted by 1 mole of methane in 0.25 litre container at 300 K using Van der Waal's equations?Given a=2.25 atm - L2/mol2b=0.05 L/mol

How does Jo want the story to end and why?

Find the effective value or rms value of an alternating current that changes according to the law (All quantities are in S.I. unit and symbols have their usual meaning) I=10, when 0<t<T/8; I=0, when T8<t<T2 I=-10, when T2<t<58T; I = 0, when 58T,t<T; I = 10, when T<t<98T