6277 + Interview Questions in Physics Page 64 InterviewSolution

3151.	A gas mixture consists of 2 moies of oxygen and 4 moie of Ar at temperature T. Neglacting all vibration of modes, the total internal energy of the system is
Answer» A gas mixture consists of 2 moies of oxygen and 4 moie of Ar at temperature T. Neglacting all vibration of modes, the total internal energy of the system is

Discussion

3152.	Name a safety device used in the electric circuit. What is the function of that safety device?
Answer» Name a safety device used in the electric circuit. What is the function of that safety device?

Discussion

3153.	A solid sphere of radius r made of a soft material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless piston of the area A floats on the surface of the liquid, covering an entire cross-section of the cylindrical container. When a mass M is placed on the surface of the piston to compress the liquid, the fractional decrement in the radius of the sphere is MgαAB. Then the value of α is
Answer» A solid sphere of radius r made of a soft material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless piston of the area A floats on the surface of the liquid, covering an entire cross-section of the cylindrical container. When a mass $M$ is placed on the surface of the piston to compress the liquid, the fractional decrement in the radius of the sphere is $\frac{M g}{α A B}$ . Then the value of $α$ is

Discussion

3154.	What is ideal gas equation
Answer» What is ideal gas equation

Discussion

3155.	A wire shaped to a regular hexagon of Side 2 centimetre carries a current of 2 ampere find the magnitude of magneticfield at the centre of hexagon
Answer» A wire shaped to a regular hexagon of Side 2 centimetre carries a current of 2 ampere find the magnitude of magneticfield at the centre of hexagon

Discussion

3156.	Pick the superlative form of the adverb given in the brackets. Clarence talks the (loud) in class.
Answer» Pick the superlative form of the adverb given in the brackets. Clarence talks the (loud) in class.

3156.

Pick the superlative form of the adverb given in the brackets. Clarence talks the (loud) in class.

Answer»

Pick the superlative form of the adverb given in the brackets.

Clarence talks the (loud) in class.

Discussion

3157.	Select the correct option:Statement 1: Following figure represents the switch in ‘ON’ position.Statement 2: When switch is in ‘ON’ position current does not flow through the circuit.
Answer» Select the correct option: Statement 1: Following figure represents the switch in ‘ON’ position. Statement 2: When switch is in ‘ON’ position current does not flow through the circuit.

3157.

Select the correct option:Statement 1: Following figure represents the switch in ‘ON’ position.Statement 2: When switch is in ‘ON’ position current does not flow through the circuit.

Answer»

Select the correct option:

Statement 1: Following figure represents the switch in ‘ON’ position.

Statement 2: When switch is in ‘ON’ position current does not flow through the circuit.

Discussion

3158.	More than One Answer Typeएक से अधिक उत्तर प्रकार के प्रश्नEquivalent resistance between points A and B in shown circuit is Req and power drawn from the battery is P, thenदर्शाए गए परिपथ में बिंदुओं A तथा B के मध्य तुल्य प्रतिरोध Req है तथा बैटरी से निकलने वाली शक्ति P है, तब
Answer» More than One Answer Type एक से अधिक उत्तर प्रकार के प्रश्न Equivalent resistance between points A and B in shown circuit is R_eq and power drawn from the battery is P, then दर्शाए गए परिपथ में बिंदुओं A तथा B के मध्य तुल्य प्रतिरोध R_eq है तथा बैटरी से निकलने वाली शक्ति P है, तब

Discussion

3159.	what is binding energy curve?
Answer» what is binding energy curve?

Discussion

3160.	28 Would the auto catalysed reaction can be in equilibrium.
Answer» 28 Would the auto catalysed reaction can be in equilibrium.

Discussion

3161.	At which of the following locations is a compass functional?
Answer» At which of the following locations is a compass functional?

Discussion

3162.	Write down any two examples of thermal expansion in daily life.
Answer» Write down any two examples of thermal expansion in daily life.

Discussion

3163.	What do you mean by the term ' reflection of light ' ?
Answer» What do you mean by the term ' reflection of light ' ?

Discussion

3164.	The radius of the wheel of a car is 98 cm. Find the number of revolutions it completes, when it travels a distance of 3.850 m.
Answer» The radius of the wheel of a car is 98 cm. Find the number of revolutions it completes, when it travels a distance of 3.850 m.

Discussion

3165.	in optical fibre refractive index of inner parts is 1.68 and refractive index of outer part is 1.44 the numerical aperture of the of fibre is 1).5653 2).66533).76534).865
Answer» in optical fibre refractive index of inner parts is 1.68 and refractive index of outer part is 1.44 the numerical aperture of the of fibre is 1).5653 2).66533).76534).865

Discussion

3166.	Boojho was riding in his bicycle along a straight road. He classified the motion of various parts of the bicycle as(i) rectilinear motion,(ii) circular motion and(iii) both rectilinear as well as circular motion. Can you list one part of the bicycle for each type of motion? Support your answer with reason.
Answer» Boojho was riding in his bicycle along a straight road. He classified the motion of various parts of the bicycle as (i) rectilinear motion, (ii) circular motion and (iii) both rectilinear as well as circular motion. Can you list one part of the bicycle for each type of motion? Support your answer with reason.

Discussion

3167.	(1) if you heated a big stone and a small stone in a fire,which would store more energy?explain (2) a car and a heaavy truck are moving along a main road side by side. which has more kinetic energy explain
Answer» (1) if you heated a big stone and a small stone in a fire,which would store more energy?explain (2) a car and a heaavy truck are moving along a main road side by side. which has more kinetic energy explain

3167.

(1) if you heated a big stone and a small stone in a fire,which would store more energy?explain (2) a car and a heaavy truck are moving along a main road side by side. which has more kinetic energy explain

Answer»

(1) if you heated a big stone and a small stone in a fire,which would store more energy?explain

(2) a car and a heaavy truck are moving along a main road side by side. which has more kinetic energy explain

Discussion

3168.	Select the correct alternative: Two rods A and B of the same metal, but of length 1 m and 2 m respectively, are heated from 0∘C to 100∘C. Then:
Answer» Select the correct alternative: Two rods A and B of the same metal, but of length 1 m and 2 m respectively, are heated from $0^{\circ} C$ to $100^{\circ} C$ . Then:

Discussion

3169.	In hydroelectric power station,
Answer» In hydroelectric power station,

Discussion

3170.	Why is a ring of iron blade heated before fixing it into the handle of a tool?
Answer» Why is a ring of iron blade heated before fixing it into the handle of a tool?

Discussion

3171.	The electric field due to a point charge at a distance 1 m from it is 900 N/C. The magnitude of the charge is
Answer» The electric field due to a point charge at a distance 1 m from it is 900 N/C. The magnitude of the charge is

Discussion

3172.	to form the combination of capacitors, each capacitor is of 2 microfarad and can withsrand maximum of 200v. the combination of capacitors can be connected across 1000v with equivalent capacity 2 microfarad. minimum number of capacitor used to form this combination i
Answer» to form the combination of capacitors, each capacitor is of 2 microfarad and can withsrand maximum of 200v. the combination of capacitors can be connected across 1000v with equivalent capacity 2 microfarad. minimum number of capacitor used to form this combination i

Discussion

3173.	Plate bearing test with 20cm diameter plate on soil subgrade yielded a pressure of 1.25×105N/m2 at 0.5cm deflection. What is the elastic modulus of subgrade?
Answer» Plate bearing test with $20 c m$ diameter plate on soil subgrade yielded a pressure of $1.25 \times 10^{5} N / m^{2}$ at $0.5 c m$ deflection. What is the elastic modulus of subgrade?

Discussion

3174.	This section contains 1 Assertion-Reason type question, which has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.इस खण्ड में 1 कथन-कारण प्रकार का प्रश्न है, जिसमें 4 विकल्प (a), (b), (c) तथा (d) दिये गये हैं, जिनमें से केवल एक सही है। A : Friction acts always opposite to the direction of motion of the body.A : घर्षण सदैव पिण्ड की गति की दिशा के विपरीत कार्य करता है।R : Force of friction increases if the two surfaces are pressed harder.R : यदि दो पृष्ठों को जोर से दबाया जाता है, तब घर्षण बल बढ़ता है।
Answer» This section contains 1 Assertion-Reason type question, which has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct. इस खण्ड में 1 कथन-कारण प्रकार का प्रश्न है, जिसमें 4 विकल्प (a), (b), (c) तथा (d) दिये गये हैं, जिनमें से केवल एक सही है। A : Friction acts always opposite to the direction of motion of the body. A : घर्षण सदैव पिण्ड की गति की दिशा के विपरीत कार्य करता है। R : Force of friction increases if the two surfaces are pressed harder. R : यदि दो पृष्ठों को जोर से दबाया जाता है, तब घर्षण बल बढ़ता है।

3174.

This section contains 1 Assertion-Reason type question, which has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.इस खण्ड में 1 कथन-कारण प्रकार का प्रश्न है, जिसमें 4 विकल्प (a), (b), (c) तथा (d) दिये गये हैं, जिनमें से केवल एक सही है। A : Friction acts always opposite to the direction of motion of the body.A : घर्षण सदैव पिण्ड की गति की दिशा के विपरीत कार्य करता है।R : Force of friction increases if the two surfaces are pressed harder.R : यदि दो पृष्ठों को जोर से दबाया जाता है, तब घर्षण बल बढ़ता है।

Answer»

This section contains 1 Assertion-Reason type question, which has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.

इस खण्ड में 1 कथन-कारण प्रकार का प्रश्न है, जिसमें 4 विकल्प (a), (b), (c) तथा (d) दिये गये हैं, जिनमें से केवल एक सही है।

A : Friction acts always opposite to the direction of motion of the body.

A : घर्षण सदैव पिण्ड की गति की दिशा के विपरीत कार्य करता है।

R : Force of friction increases if the two surfaces are pressed harder.

R : यदि दो पृष्ठों को जोर से दबाया जाता है, तब घर्षण बल बढ़ता है।

Discussion

3175.	Find the time taken by a person to reach point B if he starts from point A and moves at a constant pace of 1m/s and distance between A and B is 1km.
Answer» Find the time taken by a person to reach point B if he starts from point A and moves at a constant pace of 1m/s and distance between A and B is 1km.

Discussion

3176.	A device that breaks the circuit or completes it is known as:
Answer» A device that breaks the circuit or completes it is known as:

Discussion

3177.	Through which medium sound travels faster, iron or water? Give reason.
Answer» Through which medium sound travels faster, iron or water? Give reason.

Discussion

3178.	If the electric consumption of your house is 20 kWh in one day and the cost of electricity is Rs 4 per unit, find out how much electricity bill you will have to pay for one month(30 days).
Answer» If the electric consumption of your house is $20 k W h$ in one day and the cost of electricity is $R s 4$ per unit, find out how much electricity bill you will have to pay for one month( $30 d a y s$ ).

3178.

If the electric consumption of your house is 20 kWh in one day and the cost of electricity is Rs 4 per unit, find out how much electricity bill you will have to pay for one month(30 days).

Answer»

If the electric consumption of your house is $20 k W h$ in one day and the cost of electricity is $R s 4$ per unit, find out how much electricity bill you will have to pay for one month( $30 d a y s$ ).

Discussion

3179.	How are speed, distance and time related to each other?
Answer» How are speed, distance and time related to each other?

Discussion

3180.	Distinguish between conductors and insulators of electricity.
Answer» Distinguish between conductors and insulators of electricity.

Discussion

3181.	For the reaction n2+o2-->2no equilibrium cons†an t=2. degree of association is?
Answer» For the reaction n2+o2-->2no equilibrium cons†an t=2. degree of association is?

Discussion

3182.	Light year is a unit of:
Answer» Light year is a unit of:

Discussion

3183.	Find the potential ϕ at the edge of a thin disc of radius R carrying the uniformly distributed charge with surface density σ
Answer» Find the potential ϕ at the edge of a thin disc of radius R carrying the uniformly distributed charge with surface density σ

Discussion

3184.	25. At what temperature molality is equal to the molarity?
Answer» 25. At what temperature molality is equal to the molarity?

Discussion

3185.	Arun travels from Delhi to Agra by road and covers a distance of 230.75 km in 2.6 hours. Find the average speed of his journey.
Answer» Arun travels from Delhi to Agra by road and covers a distance of 230.75 km in 2.6 hours. Find the average speed of his journey.

Discussion

3186.	thermometer has a wrong calibration and record the melting point of ice -5 degree Celsius it reads 55 degree Celsius instead of 50 degree Celsius find the the temperature of boiling point of water on the given scale
Answer» thermometer has a wrong calibration and record the melting point of ice -5 degree Celsius it reads 55 degree Celsius instead of 50 degree Celsius find the the temperature of boiling point of water on the given scale

Discussion

3187.	Question 3 Figure shows four cells fixed on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.
Answer» Question 3 Figure shows four cells fixed on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.

Discussion

3188.	What is wind? Explain how is wind useful to mankind?
Answer» What is wind? Explain how is wind useful to mankind?

Discussion

3189.	45 A small object is moving towards a plane mirrorwith velocity V, 10 m/s and the plane mirror ismoving with velocity V, 5 m/s as shown. Thespeed of image is4(1) 2/\sqrt{10} m/s(2) 5/\sqrt5m/s(3) 10/ \sqrt2m/s(4) 5/\sqrt{10}m/s
Answer» 45 A small object is moving towards a plane mirrorwith velocity V, 10 m/s and the plane mirror ismoving with velocity V, 5 m/s as shown. Thespeed of image is4(1) 2/\sqrt{10} m/s(2) 5/\sqrt5m/s(3) 10/ \sqrt2m/s(4) 5/\sqrt{10}m/s

Discussion

3190.	Describe a simple experiment to show that the total charge on a pair of objects that have been rubbed together is zero.
Answer» Describe a simple experiment to show that the total charge on a pair of objects that have been rubbed together is zero.

Discussion

3191.	Which of the following is true about real images? They are formed when reflected rays actually meet at a point. They are formed when reflected rays appear to meet at a point. They are formed when reflected rays diverge after reflection. They are formed when reflected rays and incident rays are parallel to each other.
Answer» Which of the following is true about real images? They are formed when reflected rays actually meet at a point. They are formed when reflected rays appear to meet at a point. They are formed when reflected rays diverge after reflection. They are formed when reflected rays and incident rays are parallel to each other.

Discussion

3192.	How can you identify the positive terminal of a cell or a battery concealed in a box with the help of a potato?
Answer» How can you identify the positive terminal of a cell or a battery concealed in a box with the help of a potato?

Discussion

3193.	Give two example to illustrate that a body can have two or more type of motion simultaneously
Answer» Give two example to illustrate that a body can have two or more type of motion simultaneously

Discussion

3194.	For a given material, the Young's modulus is 2.4 times that of rigidity modulus. Its Poisson's ratio is
Answer» For a given material, the Young's modulus is 2.4 times that of rigidity modulus. Its Poisson's ratio is

Discussion

3195.	In a sonometer, the wire with asuspended mass of M 1 kg is inresonance with a given tuning forke apparatus is taken to moon wherethe acceleration due to gravity is 1/6that, of earth. To obtain resonance onthe moon, the value of M should be(essume the mechanical waves exist onmoon)
Answer» In a sonometer, the wire with asuspended mass of M 1 kg is inresonance with a given tuning forke apparatus is taken to moon wherethe acceleration due to gravity is 1/6that, of earth. To obtain resonance onthe moon, the value of M should be(essume the mechanical waves exist onmoon)

Discussion

3196.	a barometer kept in an elevator accelerating downwards reads 76cm of Hg.what is air pressure inside the elevator.
Answer» a barometer kept in an elevator accelerating downwards reads 76cm of Hg.what is air pressure inside the elevator.

Discussion

3197.	In a golf tournament, if we designate the hole as the origin, and the putter (like a bat) is at - 5.0 m at time 0s, the average velocity of the ball when it reaches the hole is
Answer» In a golf tournament, if we designate the hole as the origin, and the putter (like a bat) is at - 5.0 m at time 0s, the average velocity of the ball when it reaches the hole is

Discussion

3198.	Based on the impact created, can you guess the approximate magnitude of earthquakes on Richter scale that occurred at Bhuj and Kashmir?
Answer» Based on the impact created, can you guess the approximate magnitude of earthquakes on Richter scale that occurred at Bhuj and Kashmir?

Discussion

3199.	An object is moving with a speed of 5m/s and is viewed in the side view mirror of a stationary car. What will be the speed of the image if the object is at a distance of 9m from the mirror. Radius of curvature of the mirror is 2m.
Answer» An object is moving with a speed of 5m/s and is viewed in the side view mirror of a stationary car. What will be the speed of the image if the object is at a distance of 9m from the mirror. Radius of curvature of the mirror is 2m.

Discussion

3200.	Two liquids having densities d1 and d2 are mixed in such a way that both have same mass. The density of the mixture is
Answer» Two liquids having densities d1 and d2 are mixed in such a way that both have same mass. The density of the mixture is

Discussion

Explore topic-wise InterviewSolutions in .

A gas mixture consists of 2 moies of oxygen and 4 moie of Ar at temperature T. Neglacting all vibration of modes, the total internal energy of the system is

Name a safety device used in the electric circuit. What is the function of that safety device?

What is ideal gas equation

A wire shaped to a regular hexagon of Side 2 centimetre carries a current of 2 ampere find the magnitude of magneticfield at the centre of hexagon

Pick the superlative form of the adverb given in the brackets. Clarence talks the (loud) in class.

Select the correct option:Statement 1: Following figure represents the switch in ‘ON’ position.Statement 2: When switch is in ‘ON’ position current does not flow through the circuit.

what is binding energy curve?

28 Would the auto catalysed reaction can be in equilibrium.

At which of the following locations is a compass functional?

Write down any two examples of thermal expansion in daily life.

What do you mean by the term ' reflection of light ' ?

The radius of the wheel of a car is 98 cm. Find the number of revolutions it completes, when it travels a distance of 3.850 m.

in optical fibre refractive index of inner parts is 1.68 and refractive index of outer part is 1.44 the numerical aperture of the of fibre is 1).5653 2).66533).76534).865

(1) if you heated a big stone and a small stone in a fire,which would store more energy?explain (2) a car and a heaavy truck are moving along a main road side by side. which has more kinetic energy explain

Select the correct alternative: Two rods A and B of the same metal, but of length 1 m and 2 m respectively, are heated from 0∘C to 100∘C. Then:

In hydroelectric power station,

Why is a ring of iron blade heated before fixing it into the handle of a tool​?

The electric field due to a point charge at a distance 1 m from it is 900 N/C. The magnitude of the charge is

to form the combination of capacitors, each capacitor is of 2 microfarad and can withsrand maximum of 200v. the combination of capacitors can be connected across 1000v with equivalent capacity 2 microfarad. minimum number of capacitor used to form this combination i

Plate bearing test with 20cm diameter plate on soil subgrade yielded a pressure of 1.25×105N/m2 at 0.5cm deflection. What is the elastic modulus of subgrade?

Find the time taken by a person to reach point B if he starts from point A and moves at a constant pace of 1m/s and distance between A and B is 1km.

A device that breaks the circuit or completes it is known as:

Through which medium sound travels faster, iron or water? Give reason.

If the electric consumption of your house is 20 kWh in one day and the cost of electricity is Rs 4 per unit, find out how much electricity bill you will have to pay for one month(30 days).

How are speed, distance and time related to each other?

Distinguish between conductors and insulators of electricity.

For the reaction n2+o2-->2no equilibrium cons†an t=2. degree of association is?

Light year is a unit of:

Find the potential ϕ at the edge of a thin disc of radius R carrying the uniformly distributed charge with surface density σ

25. At what temperature molality is equal to the molarity?

Arun travels from Delhi to Agra by road and covers a distance of 230.75 km in 2.6 hours. Find the average speed of his journey.

thermometer has a wrong calibration and record the melting point of ice -5 degree Celsius it reads 55 degree Celsius instead of 50 degree Celsius find the the temperature of boiling point of water on the given scale

Question 3 Figure shows four cells fixed on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.

What is wind? Explain how is wind useful to mankind?

45 A small object is moving towards a plane mirrorwith velocity V, 10 m/s and the plane mirror ismoving with velocity V, 5 m/s as shown. Thespeed of image is4(1) 2/\sqrt{10} m/s(2) 5/\sqrt5m/s(3) 10/ \sqrt2m/s(4) 5/\sqrt{10}m/s

Describe a simple experiment to show that the total charge on a pair of objects that have been rubbed together is zero.

How can you identify the positive terminal of a cell or a battery concealed in a box with the help of a potato?

Give two example to illustrate that a body can have two or more type of motion simultaneously

For a given material, the Young's modulus is 2.4 times that of rigidity modulus. Its Poisson's ratio is

In a sonometer, the wire with asuspended mass of M 1 kg is inresonance with a given tuning forke apparatus is taken to moon wherethe acceleration due to gravity is 1/6that, of earth. To obtain resonance onthe moon, the value of M should be(essume the mechanical waves exist onmoon)

a barometer kept in an elevator accelerating downwards reads 76cm of Hg.what is air pressure inside the elevator.

In a golf tournament, if we designate the hole as the origin, and the putter (like a bat) is at - 5.0 m at time 0s, the average velocity of the ball when it reaches the hole is

Based on the impact created, can you guess the approximate magnitude of earthquakes on Richter scale that occurred at Bhuj and Kashmir?

An object is moving with a speed of 5m/s and is viewed in the side view mirror of a stationary car. What will be the speed of the image if the object is at a distance of 9m from the mirror. Radius of curvature of the mirror is 2m.

Two liquids having densities d1 and d2 are mixed in such a way that both have same mass. The density of the mixture is

Why is a ring of iron blade heated before fixing it into the handle of a tool?