13232 + Interview Questions in Physics Page 96 InterviewSolution

4751.	Question 4 (c)An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms: muscular, contact, non-contact, gravity, friction, shape, attraction(c) The type of force responsible for a change in the state of motion of the arrow is an example of a ___ force.
Answer» Question 4 (c) An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms: muscular, contact, non-contact, gravity, friction, shape, attraction (c) The type of force responsible for a change in the state of motion of the arrow is an example of a ___ force.

Discussion

4752.	A force of 250 N is applied to the smaller piston of hydraulic machine. Neglecting friction, find the force exerted on the large piston, if the area of the pistons is 5 m2 and 25 m2 respectively.
Answer» A force of 250 N is applied to the smaller piston of hydraulic machine. Neglecting friction, find the force exerted on the large piston, if the area of the pistons is $5 m^{2}$ and $25 m^{2}$ respectively.

Discussion

4753.	How velocity = displacement /time?
Answer» How velocity = displacement /time?

Discussion

4754.	A mirror in the first quadrant is in the shape of a hyperbola whose equation is xy = 1. A light source in the second quadrant emits a beam of light that hits the mirror at the point (2,1/2). If the reflected ray is parallel to the y-axis the slope of the incident beam is A) 13/8 B) 7/4 C) 15/8 D) 2
Answer» A mirror in the first quadrant is in the shape of a hyperbola whose equation is xy = 1. A light source in the second quadrant emits a beam of light that hits the mirror at the point (2,1/2). If the reflected ray is parallel to the y-axis the slope of the incident beam is A) 13/8 B) 7/4 C) 15/8 D) 2

Discussion

4755.	14. Three miles of an ideal gas expanded spontaneously into vaccum. The work done will be?
Answer» 14. Three miles of an ideal gas expanded spontaneously into vaccum. The work done will be?

Discussion

4756.	The __ of an object is a measure of its inertia.
Answer» The __ of an object is a measure of its inertia.

Discussion

4757.	A CAR TRAVELLING AT 36 KM/H IN 5 SECONDS.WHAT IS THE ACCELERATION.? IF THE SAME CAR STOPS IN 20 SECONDS , WHAT IS THE RETARDATION ?
Answer» A CAR TRAVELLING AT 36 KM/H IN 5 SECONDS.WHAT IS THE ACCELERATION.? IF THE SAME CAR STOPS IN 20 SECONDS , WHAT IS THE RETARDATION ?

Discussion

4758.	Suppose,the accelaration due to gravity at the Earth's surface is 10 m/s2 and at the surface of Mars is 4.0 m/s2. A 60 kg passenger goes from the Earth to Mars in a spaceship moving with a constant velocity. Neglect the influence of all other objects in the sky. Which of the following best represents the weight(net gravitational force)of the passenger as a function of time
Answer» Suppose,the accelaration due to gravity at the Earth's surface is $10 {m/s}^{2}$ and at the surface of Mars is $4.0 {m/s}^{2}$ . A $60 kg$ passenger goes from the Earth to Mars in a spaceship moving with a constant velocity. Neglect the influence of all other objects in the sky. Which of the following best represents the weight(net gravitational force)of the passenger as a function of time

Discussion

4759.	A bar magnet is freely oscillating in earth's magnetic field. The magnet is heated so as to reduce its magnetic moment by 19%. By doing this, the periodic time of the magnet will,
Answer» A bar magnet is freely oscillating in earth's magnetic field. The magnet is heated so as to reduce its magnetic moment by $19 %$ . By doing this, the periodic time of the magnet will,

Discussion

4760.	A particle is projected from a top of a tower of ht 20m with a speed 20m/s at an unknown angle. its speed just before hitting the ground is (g =10m/s2)1. 20m/s2. 20 root2 m/s
Answer» A particle is projected from a top of a tower of ht 20m with a speed 20m/s at an unknown angle. its speed just before hitting the ground is (g =10m/s2) 1. 20m/s 2. 20 root2 m/s

Discussion

4761.	135.What will be the focal length if the power is+5?
Answer» 135.What will be the focal length if the power is+5?

Discussion

4762.	Now that you have seen some techniques for creating vivid images with language, try to compose a poem or write a short descriptive paragraph using similes and colourful expressions. Work in pairs if you prefer. Then read it out to the class.Choose one of these themes: waves, stars and moon, rocks, sunset or sunrise.Consider the following for your chosen theme: What does it look like? What does it feel like? What does it sound like? How does it move? Where do we see it? When do we see it?
Answer» Now that you have seen some techniques for creating vivid images with language, try to compose a poem or write a short descriptive paragraph using similes and colourful expressions. Work in pairs if you prefer. Then read it out to the class. Choose one of these themes: waves, stars and moon, rocks, sunset or sunrise. Consider the following for your chosen theme: What does it look like? What does it feel like? What does it sound like? How does it move? Where do we see it? When do we see it?

4762.

Now that you have seen some techniques for creating vivid images with language, try to compose a poem or write a short descriptive paragraph using similes and colourful expressions. Work in pairs if you prefer. Then read it out to the class.Choose one of these themes: waves, stars and moon, rocks, sunset or sunrise.Consider the following for your chosen theme: What does it look like? What does it feel like? What does it sound like? How does it move? Where do we see it? When do we see it?

Answer»

Now that you have seen some techniques for creating vivid images with language, try to compose a poem or write a short descriptive paragraph using similes and colourful expressions. Work in pairs if you prefer. Then read it out to the class.

Choose one of these themes: waves, stars and moon, rocks, sunset or sunrise.

Consider the following for your chosen theme:

What does it look like?

What does it feel like?

What does it sound like?

How does it move?

Where do we see it?

When do we see it?

Discussion

4763.	What is the percentage change in length of 1m iron rod if the temperature change by 100∘C (α=2×10−5/∘)C
Answer» What is the percentage change in length of 1m iron rod if the temperature change by $100^{\circ}$ C ( $α = 2 \times 10^{- 5} /^{\circ}$ )C

Discussion

4764.	55.A circular coil of wire carries a current. PQ is a part of a very long wire carrying a current and passing close to the circular coil. If the direction of the current are those as shown what is the direction of force on PQ.
Answer» 55.A circular coil of wire carries a current. PQ is a part of a very long wire carrying a current and passing close to the circular coil. If the direction of the current are those as shown what is the direction of force on PQ.

Discussion

4765.	______ always occupy the first level of a food chain.
Answer» ______ always occupy the first level of a food chain.

Discussion

4766.	ntThree rods each of mass m and length l are joined to form an equilateral triangle . What is the moment of inertia about an axis passing through the centre of mass of the system and perpendicular to plane?n
Answer» ntThree rods each of mass m and length l are joined to form an equilateral triangle . What is the moment of inertia about an axis passing through the centre of mass of the system and perpendicular to plane?n

Discussion

4767.	Two towns A and B are connected by a regular bus service with a bus leaving in either direction every T minutes. A man cycling with a speed of 20km/hr in the direction A to B notices that a bus goes past him every 18min in the direction of his motion, and every 6min in the opposite direction. What is the period T of the bus service and with what speed (assumed cons†an t) do the buses ply on the road?
Answer» Two towns A and B are connected by a regular bus service with a bus leaving in either direction every T minutes. A man cycling with a speed of 20km/hr in the direction A to B notices that a bus goes past him every 18min in the direction of his motion, and every 6min in the opposite direction. What is the period T of the bus service and with what speed (assumed cons†an t) do the buses ply on the road?

Discussion

4768.	11. A particle of charge q and velocity v passes undeflected through a space with non-zero electric field E and magnetic field B . The undeflecting condition will hold if. (1)sign of both q and E are reversed (2)sign of both q and B are reversed (3) both B and E are changed in magnitude, but keeping the products of B and E fixed (4) both B and E are doubled in magnitude
Answer» 11. A particle of charge q and velocity v passes undeflected through a space with non-zero electric field E and magnetic field B . The undeflecting condition will hold if. (1)sign of both q and E are reversed (2)sign of both q and B are reversed (3) both B and E are changed in magnitude, but keeping the products of B and E fixed (4) both B and E are doubled in magnitude

Discussion

4769.	A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate(i) the maximum height to which it rises.(ii) the total time it takes to return to the surface of the earth.
Answer» A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate (i) the maximum height to which it rises. (ii) the total time it takes to return to the surface of the earth.

Discussion

4770.	An object is falling from a height of 20 m. At what point does it have maximum kinetic energy?
Answer» An object is falling from a height of $20 m$ . At what point does it have maximum kinetic energy?

Discussion

4771.	If linear speed of a body moving in circular path is constant . Then angular speed is proportional to a) 1/r b)r⁰
Answer» If linear speed of a body moving in circular path is constant . Then angular speed is proportional to a) 1/r b)r⁰

Discussion

4772.	500 litres of water is raised from the first floor of a house at height 4 m to its third floor at height 12 m. If density of water is 1kgl−1 then the change in potential energy is (take g=10ms−2):
Answer» 500 litres of water is raised from the first floor of a house at height 4 m to its third floor at height 12 m. If density of water is $1 k g l^{- 1}$ then the change in potential energy is (take $g = 10 m s^{- 2}$ ):

Discussion

4773.	A bullet of mass 20 grams moving with a velocity of 100 ms−1 strikes a wooden block of mass 80 grams and gets embedded into it. What is the velocity acquired by the block?
Answer» A bullet of mass 20 grams moving with a velocity of $100 m s^{- 1}$ strikes a wooden block of mass 80 grams and gets embedded into it. What is the velocity acquired by the block?

Discussion

4774.	The kinetic energy of an body mass 'm' , moving with a velocity of 5m/s is 25 J. If the velocity is increased by three times, the kinetic energy is ?
Answer» The kinetic energy of an body mass 'm' , moving with a velocity of 5m/s is 25 J. If the velocity is increased by three times, the kinetic energy is ?

Discussion

4775.	A balloon rises from rest on the ground with constant acceleration g/3A stone is dropped when the balloon has rises to a height 60 metre. The time taken by the stone to reach the ground is.
Answer» A balloon rises from rest on the ground with constant acceleration g/3A stone is dropped when the balloon has rises to a height 60 metre. The time taken by the stone to reach the ground is.

Discussion

4776.	A short dipole of dipole moment p is placed in a uniform electric field E' with its axis parallel to E' vector. In this case one of the equipotential surfaces enclosing the dipole forms a sphere . Find the radius of this sphere .
Answer» A short dipole of dipole moment p is placed in a uniform electric field E' with its axis parallel to E' vector. In this case one of the equipotential surfaces enclosing the dipole forms a sphere . Find the radius of this sphere .

Discussion

4777.	An LC circuit contains 0.6H inductor and 25microfarad rate of changeof current when charge on capacitor is 3* 10
Answer» An LC circuit contains 0.6H inductor and 25microfarad rate of change of current when charge on capacitor is 3* 10

Discussion

4778.	In the case of a moving body, force is not needed ___ .
Answer» In the case of a moving body, force is not needed ___ .

Discussion

4779.	How to derive the equations of motion 1. v= u + at 2. s= ut + 1/2at^2 3. v^{2 }- u^2 = 2a
Answer» How to derive the equations of motion 1. v= u + at 2. s= ut + 1/2at^2 3. v^{2 }- u^2 = 2a

Discussion

4780.	28. Shape and structure of ClF3 ,SF4 and I3
Answer» 28. Shape and structure of ClF3 ,SF4 and I3

Discussion

4781.	Why do we lean forward when a train stops?
Answer» Why do we lean forward when a train stops?

Discussion

4782.	Question 70(iii)A man started his journey on his car from Location A and came back. The given graph shows his position at different times during the whole journey.Which journey, forward or return, was of longer duration?
Answer» Question 70(iii) A man started his journey on his car from Location A and came back. The given graph shows his position at different times during the whole journey. Which journey, forward or return, was of longer duration?

Discussion

4783.	A piece of wood having dimensions 1 m by 2 m by 3 m and 2 kg mass. What is the density of wood? Would the wood float in water? (dwater=1000kgm3)
Answer» A piece of wood having dimensions 1 m by 2 m by 3 m and 2 kg mass. What is the density of wood? Would the wood float in water? ( $d_{w a t e r} = 1000 \frac{k g}{m^{3}})$

Discussion

4784.	A ball of mass 100g hits a smooth vertical wall normally with a speed of 15m/s four time per second and rebound each time with a speed of 15m/s. The average force exerted on the wall is
Answer» A ball of mass 100g hits a smooth vertical wall normally with a speed of 15m/s four time per second and rebound each time with a speed of 15m/s. The average force exerted on the wall is

Discussion

4785.	Sound is a type of
Answer» Sound is a type of

Discussion

4786.	A police van moving on a highway with a speed of 10 ms^{-1} fires a bullet at a thief's car speeding away in the same direction with a speed of 30 ms^{-1}. If the muzzle speed of the bullet is 140 ms^{-1}, with what speed will the bullet hit the thief's car?
Answer» A police van moving on a highway with a speed of 10 ms^{-1} fires a bullet at a thief's car speeding away in the same direction with a speed of 30 ms^{-1}. If the muzzle speed of the bullet is 140 ms^{-1}, with what speed will the bullet hit the thief's car?

Discussion

4787.	15.a particle of mass 1kg is moving in a circular path of radius 1m with const speed of 1m/s .if particle moves 1/4 th of total circumference ,then magnitude of change in velocity is
Answer» 15.a particle of mass 1kg is moving in a circular path of radius 1m with const speed of 1m/s .if particle moves 1/4 th of total circumference ,then magnitude of change in velocity is

Discussion

4788.	Magnetic flux linked with an inductor increases from 0 and x as the current in the inductor increases from 0 and y magnetic energy stored in the inductor is
Answer» Magnetic flux linked with an inductor increases from 0 and x as the current in the inductor increases from 0 and y magnetic energy stored in the inductor is

Discussion

4789.	A car is moving with velocity of 16 m second when brakes are applied the force applied by the brakes is 1000 n the mass of the car is a passengers is 1200 kilogram. (a) how long should the brakes be applied to make the car come to a halt? (B) how far does the car travel before it comes to rest?
Answer» A car is moving with velocity of 16 m second when brakes are applied the force applied by the brakes is 1000 n the mass of the car is a passengers is 1200 kilogram. (a) how long should the brakes be applied to make the car come to a halt? (B) how far does the car travel before it comes to rest?

Discussion

4790.	Calculate the number of electrons,protons,neutrons in 1.phosphorus atom.2. Phosphate ion.MASS NO.=P=31, O=16ATOMIC NO.P=15,O=8along with explanation.
Answer» Calculate the number of electrons,protons,neutrons in 1.phosphorus atom. 2. Phosphate ion. MASS NO.=P=31, O=16 ATOMIC NO.P=15,O=8 along with explanation.

Discussion

4791.	In the figure theta=†an inverse(\surd2),then the correct direction of the magnetic field at P can br shown by the arro
Answer» In the figure theta=†an inverse(\surd2),then the correct direction of the magnetic field at P can br shown by the arro

Discussion

4792.	What is the cumulative effect of the force?
Answer» What is the cumulative effect of the force?

Discussion

4793.	Two resistors 400 Ω and 800 Ω are connected in series across a 6 V battery. The potential difference measured by a voltmeter of resistance 10 kΩ across 400 Ω resistor is close to:
Answer» Two resistors $400 Ω and 800 Ω$ are connected in series across a $6 V$ battery. The potential difference measured by a voltmeter of resistance $10 k Ω across 400 Ω$ resistor is close to:

Discussion

4794.	what is displacement time graph of body at rest?
Answer» what is displacement time graph of body at rest?

Discussion

4795.	Question 5 A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is (a) accelerated (b) uniform (c) retarded (d) along circular tracks
Answer» Question 5 A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is (a) accelerated (b) uniform (c) retarded (d) along circular tracks

Discussion

4796.	A rec†an gular †an k of base area 100m^2 has a height of 2m. Calculate the thrust at the bottom of the †an k, if it is filled upto the brim with water of density 10^3 kg/m^3
Answer» A rec†an gular †an k of base area 100m^2 has a height of 2m. Calculate the thrust at the bottom of the †an k, if it is filled upto the brim with water of density 10^3 kg/m^3

Discussion

4797.	Answer the following:a. Give two examples of use of fluid pressure by us.b. If a pentagonal cylinder filled with water is connected with another cylinder of different volume, in which cylinder would the level of water be greater finally? Both cylinders are open at the top. [5 MARKS]
Answer» Answer the following: a. Give two examples of use of fluid pressure by us. b. If a pentagonal cylinder filled with water is connected with another cylinder of different volume, in which cylinder would the level of water be greater finally? Both cylinders are open at the top. [5 MARKS]

4797.

Answer the following:a. Give two examples of use of fluid pressure by us.b. If a pentagonal cylinder filled with water is connected with another cylinder of different volume, in which cylinder would the level of water be greater finally? Both cylinders are open at the top. [5 MARKS]

Answer»

Answer the following:

a. Give two examples of use of fluid pressure by us.

b.

If a pentagonal cylinder filled with water is connected with another cylinder of different volume, in which cylinder would the level of water be greater finally? Both cylinders are open at the top. [5 MARKS]

Discussion

4798.	2. Read the description given alongside this sketch from a photograph in a newspaper (Times of India, 4 September 1999. Make up a story about what the monkey is thinking, or why it is looking into a mirror. Write a paragraph about it.
Answer» 2. Read the description given alongside this sketch from a photograph in a newspaper (Times of India, 4 September 1999. Make up a story about what the monkey is thinking, or why it is looking into a mirror. Write a paragraph about it.

4798.

2. Read the description given alongside this sketch from a photograph in a newspaper (Times of India, 4 September 1999. Make up a story about what the monkey is thinking, or why it is looking into a mirror. Write a paragraph about it.

Answer»

2. Read the description given alongside this sketch from a photograph in a newspaper (Times of India, 4 September 1999. Make up a story about what the monkey is thinking, or why it is looking into a mirror. Write a paragraph about it.

Discussion

4799.	If a carpet is beaten with a stick, dust comes out. Why does this happen?
Answer» If a carpet is beaten with a stick, dust comes out. Why does this happen?

Discussion

4800.	(3) 16J4) 82 Which of the following vector is perpendicular to the vector A -2i+3j+ 4K?(2) 4i+3j-2k(4) i+2j-2k(3) i-3j+k3. A block of mass 2 kg is placed on a smooth horizontal surface. Two forces F1 20 N and F,
Answer» (3) 16J4) 82 Which of the following vector is perpendicular to the vector A -2i+3j+ 4K?(2) 4i+3j-2k(4) i+2j-2k(3) i-3j+k3. A block of mass 2 kg is placed on a smooth horizontal surface. Two forces F1 20 N and F,

Discussion

Explore topic-wise InterviewSolutions in .

A force of 250 N is applied to the smaller piston of hydraulic machine. Neglecting friction, find the force exerted on the large piston, if the area of the pistons is 5 m2 and 25 m2 respectively.

How velocity = displacement /time?

A mirror in the first quadrant is in the shape of a hyperbola whose equation is xy = 1. A light source in the second quadrant emits a beam of light that hits the mirror at the point (2,1/2). If the reflected ray is parallel to the y-axis the slope of the incident beam is A) 13/8 B) 7/4 C) 15/8 D) 2

14. Three miles of an ideal gas expanded spontaneously into vaccum. The work done will be?

The __ of an object is a measure of its inertia.

A CAR TRAVELLING AT 36 KM/H IN 5 SECONDS.WHAT IS THE ACCELERATION.? IF THE SAME CAR STOPS IN 20 SECONDS , WHAT IS THE RETARDATION ?

A bar magnet is freely oscillating in earth's magnetic field. The magnet is heated so as to reduce its magnetic moment by 19%. By doing this, the periodic time of the magnet will,

A particle is projected from a top of a tower of ht 20m with a speed 20m/s at an unknown angle. its speed just before hitting the ground is (g =10m/s2)1. 20m/s2. 20 root2 m/s

135.What will be the focal length if the power is+5?

What is the percentage change in length of 1m iron rod if the temperature change by 100∘C (α=2×10−5/∘)C

55.A circular coil of wire carries a current. PQ is a part of a very long wire carrying a current and passing close to the circular coil. If the direction of the current are those as shown what is the direction of force on PQ.

______ always occupy the first level of a food chain.

ntThree rods each of mass m and length l are joined to form an equilateral triangle . What is the moment of inertia about an axis passing through the centre of mass of the system and perpendicular to plane?n

A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate(i) the maximum height to which it rises.(ii) the total time it takes to return to the surface of the earth.

An object is falling from a height of 20 m. At what point does it have maximum kinetic energy?

If linear speed of a body moving in circular path is constant . Then angular speed is proportional to a) 1/r b)r⁰

500 litres of water is raised from the first floor of a house at height 4 m to its third floor at height 12 m. If density of water is 1kgl−1 then the change in potential energy is (take g=10ms−2):

A bullet of mass 20 grams moving with a velocity of 100 ms−1 strikes a wooden block of mass 80 grams and gets embedded into it. What is the velocity acquired by the block?

The kinetic energy of an body mass 'm' , moving with a velocity of 5m/s is 25 J. If the velocity is increased by three times, the kinetic energy is ?

A balloon rises from rest on the ground with constant acceleration g/3A stone is dropped when the balloon has rises to a height 60 metre. The time taken by the stone to reach the ground is.

A short dipole of dipole moment p is placed in a uniform electric field E' with its axis parallel to E' vector. In this case one of the equipotential surfaces enclosing the dipole forms a sphere . Find the radius of this sphere .

An LC circuit contains 0.6H inductor and 25microfarad rate of changeof current when charge on capacitor is 3* 10

In the case of a moving body, force is not needed ___ .

How to derive the equations of motion 1. v= u + at 2. s= ut + 1/2at^2 3. v^{2 }- u^2 = 2a

28. Shape and structure of ClF3 ,SF4 and I3

Why do we lean forward when a train stops?

Question 70(iii)A man started his journey on his car from Location A and came back. The given graph shows his position at different times during the whole journey.​Which journey, forward or return, was of longer duration?

A piece of wood having dimensions 1 m by 2 m by 3 m and 2 kg mass. What is the density of wood? Would the wood float in water? (dwater=1000kgm3)

A ball of mass 100g hits a smooth vertical wall normally with a speed of 15m/s four time per second and rebound each time with a speed of 15m/s. The average force exerted on the wall is

Sound is a type of

A police van moving on a highway with a speed of 10 ms^{-1} fires a bullet at a thief's car speeding away in the same direction with a speed of 30 ms^{-1}. If the muzzle speed of the bullet is 140 ms^{-1}, with what speed will the bullet hit the thief's car?

15.a particle of mass 1kg is moving in a circular path of radius 1m with const speed of 1m/s .if particle moves 1/4 th of total circumference ,then magnitude of change in velocity is

Magnetic flux linked with an inductor increases from 0 and x as the current in the inductor increases from 0 and y magnetic energy stored in the inductor is

A car is moving with velocity of 16 m second when brakes are applied the force applied by the brakes is 1000 n the mass of the car is a passengers is 1200 kilogram. (a) how long should the brakes be applied to make the car come to a halt? (B) how far does the car travel before it comes to rest?

Calculate the number of electrons,protons,neutrons in 1.phosphorus atom.2. Phosphate ion.MASS NO.=P=31, O=16ATOMIC NO.P=15,O=8along with explanation.

In the figure theta=†an inverse(\surd2),then the correct direction of the magnetic field at P can br shown by the arro

What is the cumulative effect of the force?

Two resistors 400 Ω and 800 Ω are connected in series across a 6 V battery. The potential difference measured by a voltmeter of resistance 10 kΩ across 400 Ω resistor is close to:

what is displacement time graph of body at rest?

Question 5 A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is (a) accelerated (b) uniform (c) retarded (d) along circular tracks

A rec†an gular †an k of base area 100m^2 has a height of 2m. Calculate the thrust at the bottom of the †an k, if it is filled upto the brim with water of density 10^3 kg/m^3

Answer the following:a. Give two examples of use of fluid pressure by us.b. If a pentagonal cylinder filled with water is connected with another cylinder of different volume, in which cylinder would the level of water be greater finally? Both cylinders are open at the top. [5 MARKS]

2. Read the description given alongside this sketch from a photograph in a newspaper (Times of India, 4 September 1999. Make up a story about what the monkey is thinking, or why it is looking into a mirror. Write a paragraph about it.

If a carpet is beaten with a stick, dust comes out. Why does this happen?

(3) 16J4) 82 Which of the following vector is perpendicular to the vector A -2i+3j+ 4K?(2) 4i+3j-2k(4) i+2j-2k(3) i-3j+k3. A block of mass 2 kg is placed on a smooth horizontal surface. Two forces F1 20 N and F,

Question 70(iii)A man started his journey on his car from Location A and came back. The given graph shows his position at different times during the whole journey.Which journey, forward or return, was of longer duration?