50278 + Interview Questions in Physics

1.	75. A particle moving with a uniform acceleration travels 24 metre and 64 metre in first two successive intervalsof 4 second each. Its initial velocity is(1) 1 m/s(3) 5 m/s(2) 2 m/s(4) 10 m/s
Answer» 75. A particle moving with a uniform acceleration travels 24 metre and 64 metre in first two successive intervalsof 4 second each. Its initial velocity is(1) 1 m/s(3) 5 m/s(2) 2 m/s(4) 10 m/s

Discussion

2.	A ball of mass 0.4kg thrown up in air with velocity 30m/s reaches the highest point in 25 seconds. The air resistance encountered by the ball during upward motion is?
Answer» A ball of mass 0.4kg thrown up in air with velocity 30m/s reaches the highest point in 25 seconds. The air resistance encountered by the ball during upward motion is?

Discussion

3.	13.A block is projected down an inclined plane having an angle of inclination θ and coefficient of kinetic friction μ , let us project the block up along plane with velocity v1. How much time will it take till it stops momentarily, 2. How much distance will it cover during its ascent ?
Answer» 13.A block is projected down an inclined plane having an angle of inclination θ and coefficient of kinetic friction μ , let us project the block up along plane with velocity v1. How much time will it take till it stops momentarily, 2. How much distance will it cover during its ascent ?

Discussion

4.	In the figure shown below, the voltage V0 is
Answer» In the figure shown below, the voltage $V_{0}$ is

Discussion

5.	Two spherical bodies of mass M and 5M and radii R and 2R released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only, then the distance covered by the smaller body before collision is
Answer» Two spherical bodies of mass $M$ and $5 M$ and radii $R$ and $2 R$ released in free space with initial separation between their centres equal to $12 R$ . If they attract each other due to gravitational force only, then the distance covered by the smaller body before collision is

Discussion

6.	∫(x−1)ex(x+1)3dx is equal to
Answer» $\int \frac{(x - 1) e^{x}}{{(x + 1)}^{3}} d x$ is equal to

Discussion

7.	The capacitance of a parallel plate capacitor with oil filled in space between plates is 40 μF. If oil is removed then capacitance becomes 5 μF. The dielectric constant of the oil is
Answer» The capacitance of a parallel plate capacitor with oil filled in space between plates is $40 μ F$ . If oil is removed then capacitance becomes $5 μ F$ . The dielectric constant of the oil is

Discussion

8.	For an ideal gas the expression [T(δsδT)P−T(δsδT)V] is always equal to
Answer» For an ideal gas the expression $[T {(\frac{δ s}{δ T})}_{P} - T {(\frac{δ s}{δ T})}_{V}]$ is always equal to

Discussion

9.	EXPANATION OF ELECTRIC MOTOR WITH DIAGRAM
Answer» EXPANATION OF ELECTRIC MOTOR WITH DIAGRAM

Discussion

10.	Two capacitors C1 and C2 are joined in a circuit as shown in figure. The potential at point A is V1 and that at B is V2.Then the potential of point D will be:
Answer» Two capacitors $C_{1}$ and $C_{2}$ are joined in a circuit as shown in figure. The potential at point $A$ is $V_{1}$ and that at $B$ is $V_{2}$ . Then the potential of point $D$ will be:

Discussion

11.	In the given arrangement for dielectric constants K1=2 and K2=3, the capacitance across P and Q are C1 and C2 respectively in figure (a) and (b). Then C1/C2 will be
Answer» In the given arrangement for dielectric constants $K_{1} = 2$ and $K_{2} = 3$ , the capacitance across $P$ and $Q$ are $C_{1}$ and $C_{2}$ respectively in figure $(a)$ and $(b)$ . Then $C_{1} / C_{2}$ will be

Discussion

12.	The length of a sonometer wire AB is 110 cm.Where should the two bridges be placed from A to divide the wire in 3 segments whose fundamental frequencies are in the ratio 1:2:3 ?
Answer» The length of a sonometer wire AB is 110 cm.Where should the two bridges be placed from A to divide the wire in 3 segments whose fundamental frequencies are in the ratio 1:2:3 ?

Discussion

13.	Sodium metal crystallizes in B.C.C lattice with edge length of 4.29˙A. The radius of sodium atom is
Answer» Sodium metal crystallizes in B.C.C lattice with edge length of $4.29 ˙ A$ . The radius of sodium atom is

Discussion

14.	If a vector 2^i+2^j+8^k is perpendicular to the vector 4^j−4^i+α^k,then the value of \alpha is:
Answer» If a vector $2^i + 2^j + 8^k$ is perpendicular to the vector $4^j - 4^i + α^k$ ,then the value of \alpha is:

Discussion

15.	A person driving a car with a speed72km/hr,suddenly sees a boy crossing the road.if the distance moved by car,before the person applies brake is 5m the reaction time of the person is
Answer» A person driving a car with a speed72km/hr,suddenly sees a boy crossing the road.if the distance moved by car,before the person applies brake is 5m the reaction time of the person is

Discussion

16.	A body of mass 2 kg is projected from origin with a velocity 3 m/s along positive x− axis on which a force −x2 is acting. Find the maximum distance from origin upto which the body can go. (x is the position of particle)
Answer» A body of mass $2 kg$ is projected from origin with a velocity $3 m/s$ along positive $x -$ axis on which a force $- x^{2}$ is acting. Find the maximum distance from origin upto which the body can go. ( $x$ is the position of particle)

Discussion

17.	A particle is projected with velocity 2 \sqrt{gh} such that it crosses 2 walls of height h separated by 2h .what is the angle of projection?
Answer» A particle is projected with velocity 2 \sqrt{gh} such that it crosses 2 walls of height h separated by 2h .what is the angle of projection?

Discussion

18.	A source of frequency 10 kHz when vibrated over the mouth of a closed organ pipe is in resonance at 300 K. The beats produced per second when temperature rises by 1 K is
Answer» A source of frequency 10 kHz when vibrated over the mouth of a closed organ pipe is in resonance at 300 K. The beats produced per second when temperature rises by 1 K is

Discussion

19.	The reduced mass of two particles having masses 4m and 2m is
Answer» The reduced mass of two particles having masses $4 m$ and $2 m$ is

Discussion

20.	The mass of 256 mL triatomic elemental gas at 27 degree Celsius and 4atm is 2g. Calculate weight of 1 atom.
Answer» The mass of 256 mL triatomic elemental gas at 27 degree Celsius and 4atm is 2g. Calculate weight of 1 atom.

Discussion

21.	The position of a particle is given by \overrightarrow R=(3t\overset∧ i-2t^2\overset∧ j+4\overset∧ k)m where t is in seconds and coefficients have proper units for \overrightarrow R to be in m. Find \overrightarrow v and \overrightarrow aof the particle, and the magnitude and direction of velocity of particle at t=2.
Answer» The position of a particle is given by \overrightarrow R=(3t\overset∧ i-2t^2\overset∧ j+4\overset∧ k)m where t is in seconds and coefficients have proper units for \overrightarrow R to be in m. Find \overrightarrow v and \overrightarrow aof the particle, and the magnitude and direction of velocity of particle at t=2.

Discussion

22.	Assertion hollow sphere is rollingdown on rough incline plane. Work done byfriction is zero. Reason No friction force acts on the sphere inabove case
Answer» Assertion hollow sphere is rollingdown on rough incline plane. Work done byfriction is zero. Reason No friction force acts on the sphere inabove case

Discussion

23.	In a binary baseband communication system the equiprobable bits are modelled using polar-NRZ scheme with a rectangular basic pulse of amplitude 1 V. These bits are transmitted through an AWGN channel with two sided noise PSD of 10−5W/Hz and received by a correlator receiver with optimum threshold detection. If the maximum acceptable bit error rate (BER) is 10−4 then the maximum allowable bit rate (Rb) will be ________ kbps.[Assume that the effect of ISI is negligible and Q(3.7)=10−4]7.305
Answer» In a binary baseband communication system the equiprobable bits are modelled using polar-NRZ scheme with a rectangular basic pulse of amplitude 1 V. These bits are transmitted through an AWGN channel with two sided noise PSD of 10 $^{- 5}$ W/Hz and received by a correlator receiver with optimum threshold detection. If the maximum acceptable bit error rate (BER) is 10 $^{- 4}$ then the maximum allowable bit rate $(R_{b})$ will be ________ kbps. [Assume that the effect of ISI is negligible and $Q (3.7) = 10^{- 4}$ ] 7.305

Discussion

24.	At high altitude,a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of10 m/s. Time taken by the two radius vectors connecting point of explosion to fragments to make 90^° is
Answer» At high altitude,a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of10 m/s. Time taken by the two radius vectors connecting point of explosion to fragments to make 90^° is

Discussion

25.	What amount of heat must be supplied to 2.0 × 10¯² kg of nitrogen (at room temperature) to raise its temperature by 45 °C at constant pressure ? (Molecular mass of N² = 28; R = 8.3 J mol–¯¹ K¯¹.)
Answer» What amount of heat must be supplied to 2.0 × 10¯² kg of nitrogen (at room temperature) to raise its temperature by 45 °C at constant pressure ? (Molecular mass of N² = 28; R = 8.3 J mol–¯¹ K¯¹.)

Discussion

26.	Find the ratio of magnetic fields at point P and Q lying on the perpendicular bisector of a wire AB carrying currrent I and the length of AB is 8 m.
Answer» Find the ratio of magnetic fields at point $P$ and $Q$ lying on the perpendicular bisector of a wire $AB$ carrying currrent $I$ and the length of $AB$ is $8 m$ .

Discussion

27.	A geo-stationary satellite orbits around the earth in a circular orbit of radius 36,000 km. Then, the time period of a spy satellite orbiting a few hundred km above the earth’s surface (Rearth=6,400 km) will approximately be- (Assume (845)1.5=0.08 )
Answer» A geo-stationary satellite orbits around the earth in a circular orbit of radius $36, 000 km$ . Then, the time period of a spy satellite orbiting a few hundred km above the earth’s surface $(R_{earth} = 6, 400 km)$ will approximately be- (Assume ${(\frac{8}{45})}^{1.5} = 0.08$ )

Discussion

28.	38. uniform solid cylinder rolls up an incline plane of inclination 30º. At the bottom of the incline plane, the cylinder is given an initial velocity of 5 m/sec. along with the angular velocity required for perfect rolling. How much time will it take to return to the bottom?
Answer» 38. uniform solid cylinder rolls up an incline plane of inclination 30º. At the bottom of the incline plane, the cylinder is given an initial velocity of 5 m/sec. along with the angular velocity required for perfect rolling. How much time will it take to return to the bottom?

Discussion

29.	For the diamond section, shape factor is 2. The factor of safety in bending is 1.5. If the allowable stress is increased by 25% for wind and earthquake loads, then the load factor is.2.4
Answer» For the diamond section, shape factor is 2. The factor of safety in bending is 1.5. If the allowable stress is increased by 25% for wind and earthquake loads, then the load factor is. 2.4

29.

For the diamond section, shape factor is 2. The factor of safety in bending is 1.5. If the allowable stress is increased by 25% for wind and earthquake loads, then the load factor is.2.4

Answer»

For the diamond section, shape factor is 2. The factor of safety in bending is 1.5. If the allowable stress is increased by 25% for wind and earthquake loads, then the load factor is.

2.4

Discussion

30.	54.: Resistance of all arm is R. Then what is the equivalent restistance between point A and B?
Answer» 54.: Resistance of all arm is R. Then what is the equivalent restistance between point A and B?

Discussion

31.	A sphere of mass 'm' moving with a constant velocity 'u' hits another stationary sphere of the same mass. If 'e' is the coefficient of restitution, then the ratio of the velocity of two spheres after collision will be
Answer» A sphere of mass 'm' moving with a constant velocity 'u' hits another stationary sphere of the same mass. If 'e' is the coefficient of restitution, then the ratio of the velocity of two spheres after collision will be

Discussion

32.	A block of mass M is sliding down on a inclined plane. The co-efficient of static and kinetic friction between the block and the inclined plane is μs and μk respectively. Then friction force acting on the block is
Answer» A block of mass $M$ is sliding down on a inclined plane. The co-efficient of static and kinetic friction between the block and the inclined plane is $μ_{s}$ and $μ_{k}$ respectively. Then friction force acting on the block is

Discussion

33.	Under equilibrium condition which is true? delta s=Zero Delta h=0 Delta h >0 Delta h 0
Answer» Under equilibrium condition which is true? delta s=Zero Delta h=0 Delta h >0 Delta h <0 Delta s>0

Discussion

34.	A satellite orbits the earth at a height of 400km above the surface. How much energy must be expended to the rocket the satellite out of the earth's Earth's gravitational influence? Mass of the satellite= 200kg ;mass of Earth= 6.410^6 m G= 6.6710^(-11)N-m^2/kg^2
Answer» A satellite orbits the earth at a height of 400km above the surface. How much energy must be expended to the rocket the satellite out of the earth's Earth's gravitational influence? Mass of the satellite= 200kg ;mass of Earth= 6.410^6 m G= 6.6710^(-11)N-m^2/kg^2

Discussion

35.	What are conductors?
Answer» What are conductors?

Discussion

36.	The focal length of a convex lens is f an object is placed at a distance x from the first focal point .Find the ratio of the distance of the real image to that of the object from the pole .
Answer» The focal length of a convex lens is f an object is placed at a distance x from the first focal point .Find the ratio of the distance of the real image to that of the object from the pole .

Discussion

37.	A hydrogen atom initially in the ground level absorbs a photon,which excites it to the n = 4 level. Determine the wavelength andfrequency of photon.
Answer» A hydrogen atom initially in the ground level absorbs a photon,which excites it to the n = 4 level. Determine the wavelength andfrequency of photon.

Discussion

38.	A block of mass m kg is kept on a weighing machine in an elevator. If the elevator is retarding upward by a ms^{-2}the reading of weighing machine is (in kgf)(1) mg(2)m(g - a) (3) m(1-a/g)(4) m(g+ a)
Answer» A block of mass m kg is kept on a weighing machine in an elevator. If the elevator is retarding upward by a ms^{-2}the reading of weighing machine is (in kgf)(1) mg(2)m(g - a) (3) m(1-a/g)(4) m(g+ a)

Discussion

39.	in refraction why instead of angle i or angle r we call sin i and sin r
Answer» in refraction why instead of angle i or angle r we call sin i and sin r

Discussion

40.	A source emitting sound at frequency 3000 Hz, is moving along positive y− axis with a speed 35 m/s. A listener is situated on the ground at the position (670 m,0). Find the frequency of the sound received by the listener at the instant the source crosses the origin. Speed of sound in air is 335 m/s
Answer» A source emitting sound at frequency $3000 Hz$ , is moving along positive $y -$ axis with a speed $35 m/s$ . A listener is situated on the ground at the position $(670 m, 0)$ . Find the frequency of the sound received by the listener at the instant the source crosses the origin. Speed of sound in air is $335 m/s$

Discussion

41.	What is the Flux coming out from a 2C positive charge placed inside a cube?
Answer» What is the Flux coming out from a 2C positive charge placed inside a cube?

Discussion

42.	Write the equation of the lines for which tanθ=12, where θ is the inclination of the line and (i) y intercept is −32(ii) x intercept is 4
Answer» Write the equation of the lines for which $tan θ = \frac{1}{2}$ , where $θ$ is the inclination of the line and $(i) y$ intercept is $- \frac{3}{2}$ $(i i) x$ intercept is $4$

Discussion

43.	A block P of mass m is placed on a frictionless horizontal surface. Another block Q of same mass is kept on P and connected to the wall with the help of a spring of spring constant k as shown in the figure. μ is the coefficient of friction between P and Q. The blocks move together performing SHM of amplitude A. The maximum value of the friction force between P and Q is
Answer» A block P of mass m is placed on a frictionless horizontal surface. Another block Q of same mass is kept on P and connected to the wall with the help of a spring of spring constant k as shown in the figure. $μ$ is the coefficient of friction between P and Q. The blocks move together performing SHM of amplitude A. The maximum value of the friction force between P and Q is

43.

A block P of mass m is placed on a frictionless horizontal surface. Another block Q of same mass is kept on P and connected to the wall with the help of a spring of spring constant k as shown in the figure. μ is the coefficient of friction between P and Q. The blocks move together performing SHM of amplitude A. The maximum value of the friction force between P and Q is

Answer»

A block P of mass m is placed on a frictionless horizontal surface. Another block Q of same mass is kept on P and connected to the wall with the help of a spring of spring constant k as shown in the figure. $μ$ is the coefficient of friction between P and Q. The blocks move together performing SHM of amplitude A. The maximum value of the friction force between P and Q is

Discussion

44.	What is conservative force?
Answer» What is conservative force?

Discussion

45.	a body moving with uniform acceleration is having velocity 2 metre per second and 8 metre per second at is equals to 1 second and at t is equals to 4 seconds respectively then the average velocity of particle in the time interval t is equals to 1 II II II II is equal to 4 second is
Answer» a body moving with uniform acceleration is having velocity 2 metre per second and 8 metre per second at is equals to 1 second and at t is equals to 4 seconds respectively then the average velocity of particle in the time interval t is equals to 1 II II II II is equal to 4 second is

Discussion

46.	Consider a body, shown in figure, consisting of two identical balls, each of mass 2 kg connected by a light rigid rod. If an impulse, J=20 kg - m/s is imparted to the body at one of its end, then angular velocity will be (in rad/s)
Answer» Consider a body, shown in figure, consisting of two identical balls, each of mass $2 kg$ connected by a light rigid rod. If an impulse, $J = 20 kg - m/s$ is imparted to the body at one of its end, then angular velocity will be $(in rad/s)$

Discussion

47.	Four infinite ladder network containing identical resistances of R Ω each, are combined as shown in figure. The equivalent resistance between A and B is RAB and between A and C is RAC. If the value of RABRAC is x4, then the value of 8x is
Answer» Four infinite ladder network containing identical resistances of $R Ω$ each, are combined as shown in figure. The equivalent resistance between $A$ and $B$ is $R_{A B}$ and between $A$ and $C$ is $R_{A C}$ . If the value of $\frac{R_{A B}}{R_{A C}}$ is $\frac{x}{4}$ , then the value of $8 x$ is

Discussion

48.	A 1 microCoulomb charge is uniformly distributed on a spherical shell given by the equation x^2+y^2+z^2=25. What will be the intensity of electric field at a point(1,1,2) ?
Answer» A 1 microCoulomb charge is uniformly distributed on a spherical shell given by the equation x^2+y^2+z^2=25. What will be the intensity of electric field at a point(1,1,2) ?

Discussion

49.	Three conducting wire of same material and of equal length and equal diameter are first connected in series and then in parallel ina circuit across same potential difference. Find: 1. the ratio of current produced in the battery in series and parallel combination. 2. the ratio of total het dissipated in series and parallel combination
Answer» Three conducting wire of same material and of equal length and equal diameter are first connected in series and then in parallel ina circuit across same potential difference. Find: 1. the ratio of current produced in the battery in series and parallel combination. 2. the ratio of total het dissipated in series and parallel combination

Discussion

50.	The time constant of the circuit shown is
Answer» The time constant of the circuit shown is

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

75. A particle moving with a uniform acceleration travels 24 metre and 64 metre in first two successive intervalsof 4 second each. Its initial velocity is(1) 1 m/s(3) 5 m/s(2) 2 m/s(4) 10 m/s

A ball of mass 0.4kg thrown up in air with velocity 30m/s reaches the highest point in 25 seconds. The air resistance encountered by the ball during upward motion is?

13.A block is projected down an inclined plane having an angle of inclination θ and coefficient of kinetic friction μ , let us project the block up along plane with velocity v1. How much time will it take till it stops momentarily, 2. How much distance will it cover during its ascent ?

In the figure shown below, the voltage V0 is

Two spherical bodies of mass M and 5M and radii R and 2R released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only, then the distance covered by the smaller body before collision is

∫(x−1)ex(x+1)3dx is equal to

The capacitance of a parallel plate capacitor with oil filled in space between plates is 40 μF. If oil is removed then capacitance becomes 5 μF. The dielectric constant of the oil is

For an ideal gas the expression [T(δsδT)P−T(δsδT)V] is always equal to

EXPANATION OF ELECTRIC MOTOR WITH DIAGRAM

Two capacitors C1 and C2 are joined in a circuit as shown in figure. The potential at point A is V1 and that at B is V2.Then the potential of point D will be:

In the given arrangement for dielectric constants K1=2 and K2=3, the capacitance across P and Q are C1 and C2 respectively in figure (a) and (b). Then C1/C2 will be

The length of a sonometer wire AB is 110 cm.Where should the two bridges be placed from A to divide the wire in 3 segments whose fundamental frequencies are in the ratio 1:2:3 ?

Sodium metal crystallizes in B.C.C lattice with edge length of 4.29˙A. The radius of sodium atom is

If a vector 2^i+2^j+8^k is perpendicular to the vector 4^j−4^i+α^k,then the value of \alpha is:

A person driving a car with a speed72km/hr,suddenly sees a boy crossing the road.if the distance moved by car,before the person applies brake is 5m the reaction time of the person is

A body of mass 2 kg is projected from origin with a velocity 3 m/s along positive x− axis on which a force −x2 is acting. Find the maximum distance from origin upto which the body can go. (x is the position of particle)

A particle is projected with velocity 2 \sqrt{gh} such that it crosses 2 walls of height h separated by 2h .what is the angle of projection?

A source of frequency 10 kHz when vibrated over the mouth of a closed organ pipe is in resonance at 300 K. The beats produced per second when temperature rises by 1 K is

The reduced mass of two particles having masses 4m and 2m is

The mass of 256 mL triatomic elemental gas at 27 degree Celsius and 4atm is 2g. Calculate weight of 1 atom.

Assertion hollow sphere is rollingdown on rough incline plane. Work done byfriction is zero. Reason No friction force acts on the sphere inabove case

At high altitude,a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of10 m/s. Time taken by the two radius vectors connecting point of explosion to fragments to make 90^° is

What amount of heat must be supplied to 2.0 × 10¯² kg of nitrogen (at room temperature) to raise its temperature by 45 °C at constant pressure ? (Molecular mass of N² = 28; R = 8.3 J mol–¯¹ K¯¹.)

Find the ratio of magnetic fields at point P and Q lying on the perpendicular bisector of a wire AB carrying currrent I and the length of AB is 8 m.

A geo-stationary satellite orbits around the earth in a circular orbit of radius 36,000 km. Then, the time period of a spy satellite orbiting a few hundred km above the earth’s surface (Rearth=6,400 km) will approximately be- (Assume (845)1.5=0.08 )

38. uniform solid cylinder rolls up an incline plane of inclination 30º. At the bottom of the incline plane, the cylinder is given an initial velocity of 5 m/sec. along with the angular velocity required for perfect rolling. How much time will it take to return to the bottom?

For the diamond section, shape factor is 2. The factor of safety in bending is 1.5. If the allowable stress is increased by 25% for wind and earthquake loads, then the load factor is.2.4

54.: Resistance of all arm is R. Then what is the equivalent restistance between point A and B?

A sphere of mass 'm' moving with a constant velocity 'u' hits another stationary sphere of the same mass. If 'e' is the coefficient of restitution, then the ratio of the velocity of two spheres after collision will be

A block of mass M is sliding down on a inclined plane. The co-efficient of static and kinetic friction between the block and the inclined plane is μs and μk respectively. Then friction force acting on the block is

Under equilibrium condition which is true? delta s=Zero Delta h=0 Delta h >0 Delta h 0

A satellite orbits the earth at a height of 400km above the surface. How much energy must be expended to the rocket the satellite out of the earth's Earth's gravitational influence? Mass of the satellite= 200kg ;mass of Earth= 6.4*10^6 m G= 6.67*10^(-11)N-m^2/kg^2

What are conductors?

The focal length of a convex lens is f an object is placed at a distance x from the first focal point .Find the ratio of the distance of the real image to that of the object from the pole .

A hydrogen atom initially in the ground level absorbs a photon,which excites it to the n = 4 level. Determine the wavelength andfrequency of photon.

A block of mass m kg is kept on a weighing machine in an elevator. If the elevator is retarding upward by a ms^{-2}the reading of weighing machine is (in kgf)(1) mg(2)m(g - a) (3) m(1-a/g)(4) m(g+ a)

in refraction why instead of angle i or angle r we call sin i and sin r

What is the Flux coming out from a 2C positive charge placed inside a cube?

Write the equation of the lines for which tanθ=12, where θ is the inclination of the line and (i) y intercept is −32(ii) x intercept is 4

What is conservative force?

a body moving with uniform acceleration is having velocity 2 metre per second and 8 metre per second at is equals to 1 second and at t is equals to 4 seconds respectively then the average velocity of particle in the time interval t is equals to 1 II II II II is equal to 4 second is

Consider a body, shown in figure, consisting of two identical balls, each of mass 2 kg connected by a light rigid rod. If an impulse, J=20 kg - m/s is imparted to the body at one of its end, then angular velocity will be (in rad/s)

Four infinite ladder network containing identical resistances of R Ω each, are combined as shown in figure. The equivalent resistance between A and B is RAB and between A and C is RAC. If the value of RABRAC is x4, then the value of 8x is

A 1 microCoulomb charge is uniformly distributed on a spherical shell given by the equation x^2+y^2+z^2=25. What will be the intensity of electric field at a point(1,1,2) ?

The time constant of the circuit shown is

A satellite orbits the earth at a height of 400km above the surface. How much energy must be expended to the rocket the satellite out of the earth's Earth's gravitational influence? Mass of the satellite= 200kg ;mass of Earth= 6.410^6 m G= 6.6710^(-11)N-m^2/kg^2