9478 + Interview Questions in Physics Page 29 InterviewSolution

1401.	36.A car is moving with a constant speed 10ms along east. If the east direction taken as x axis and the north direction as Y axis then find the component of velocity on the north - east direction.
Answer» 36.A car is moving with a constant speed 10ms along east. If the east direction taken as x axis and the north direction as Y axis then find the component of velocity on the north - east direction.

Discussion

1402.	Why do skiers use long and flat skies on the snow?
Answer» Why do skiers use long and flat skies on the snow?

Discussion

1403.	A solid spherical black body of radius r and uniform mass distribution is in the free space. It emits power P and its rate of cooling is R, then:
Answer» A solid spherical black body of radius $r$ and uniform mass distribution is in the free space. It emits power $P$ and its rate of cooling is $R$ , then:

Discussion

1404.	if dimension of critical velocity vc of a liquid flowing through a tube are expressed as n^xp^yr^z where n,p,r are the coefficient of viscosity of liquid, density of liquid and adius of tube respectively, then the values of x,y,z are given by?
Answer» if dimension of critical velocity vc of a liquid flowing through a tube are expressed as n^xp^yr^z where n,p,r are the coefficient of viscosity of liquid, density of liquid and adius of tube respectively, then the values of x,y,z are given by?

Discussion

1405.	What is the relationship between potential difference,work done and charge moved
Answer» What is the relationship between potential difference,work done and charge moved

Discussion

1406.	Question 11 Prepare a list of objects around you, that are electroplated.
Answer» Question 11 Prepare a list of objects around you, that are electroplated.

Discussion

1407.	What is the difference between a planet and a satellite?
Answer» What is the difference between a planet and a satellite?

Discussion

1408.	Since action and reaction forces are always equal and opposite, how can motion then take place ? [3 MARKS]
Answer» Since action and reaction forces are always equal and opposite, how can motion then take place ? [3 MARKS]

Discussion

1409.	Q33) Indigenously developed Beyond Visual Range (BVR) air-to-air missile, Astra, was successfully test fired by the Indian Air Force off the coast of Odisha near the Integrated Test Range (ITR), Balasore. Consider the following statements: 1) Astra is India’s first beyond visual range air-to-air missile (BVRAAM) that is capable of engaging its target at ranges of 37 km or beyond. It has operational range of 60km. 2) It is an all-weather missile has been indigenously designed and developed by the Defence Research and Development Organization. Which of the above statement(s) is/are correct?
Answer» Q33) Indigenously developed Beyond Visual Range (BVR) air-to-air missile, Astra, was successfully test fired by the Indian Air Force off the coast of Odisha near the Integrated Test Range (ITR), Balasore. Consider the following statements: 1) Astra is India’s first beyond visual range air-to-air missile (BVRAAM) that is capable of engaging its target at ranges of 37 km or beyond. It has operational range of 60km. 2) It is an all-weather missile has been indigenously designed and developed by the Defence Research and Development Organization. Which of the above statement(s) is/are correct?

1409.

Q33) Indigenously developed Beyond Visual Range (BVR) air-to-air missile, Astra, was successfully test fired by the Indian Air Force off the coast of Odisha near the Integrated Test Range (ITR), Balasore. Consider the following statements: 1) Astra is India’s first beyond visual range air-to-air missile (BVRAAM) that is capable of engaging its target at ranges of 37 km or beyond. It has operational range of 60km. 2) It is an all-weather missile has been indigenously designed and developed by the Defence Research and Development Organization. Which of the above statement(s) is/are correct?

Answer»

Q33) Indigenously developed Beyond Visual Range (BVR) air-to-air missile, Astra, was successfully test fired by the Indian Air Force off the coast of Odisha near the Integrated Test Range (ITR), Balasore. Consider the following statements:

1) Astra is India’s first beyond visual range air-to-air missile (BVRAAM) that is capable of engaging its target at ranges of 37 km or beyond. It has operational range of 60km.

2) It is an all-weather missile has been indigenously designed and developed by the Defence Research and Development Organization.

Which of the above statement(s) is/are correct?

Discussion

1410.	A battery of 20V cells is charged by 220V with a charging current of 15A. If the emf of each cell is 2V and internal resistance is 0.1 ohm, then the series resistance required to be placed in the circuit will be 1) 16 ohm 2) 10 ohm 3) 12 ohm 4) 14 ohm
Answer» A battery of 20V cells is charged by 220V with a charging current of 15A. If the emf of each cell is 2V and internal resistance is 0.1 ohm, then the series resistance required to be placed in the circuit will be 1) 16 ohm 2) 10 ohm 3) 12 ohm 4) 14 ohm

Discussion

1411.	Which of the following is not a cause for earthquakes?
Answer» Which of the following is not a cause for earthquakes?

Discussion

1412.	When we make same image s in our notebook and turn pages of our n.b.,we see the image moving.what is this phenomenon called?
Answer» When we make same image s in our notebook and turn pages of our n.b.,we see the image moving.what is this phenomenon called?

Discussion

1413.	Question 26A current of 1 ampere flows in a series circuit containing an electric lamp and a conductor of 5 Ω when connected to a 10 V battery. Calculate the resistance of the electric lamp.Now if a resistance of 10 Ω is connected in parallel with this series combination, what change (if any) in current flowing through 5 Ω conductors and the potential difference across the lamp will take place? Give reason.
Answer» Question 26 A current of 1 ampere flows in a series circuit containing an electric lamp and a conductor of 5 $Ω$ when connected to a 10 V battery. Calculate the resistance of the electric lamp. Now if a resistance of 10 $Ω$ is connected in parallel with this series combination, what change (if any) in current flowing through 5 $Ω$ conductors and the potential difference across the lamp will take place? Give reason.

Discussion

1414.	What is the necessary condition for rolling to take place ?
Answer» What is the necessary condition for rolling to take place ?

Discussion

1415.	A bus is moving with a velocity 4 m/s towards a wall, the driver sounds a horn of frequency 173 Hz. If the speed of sound in air is 350 m/s. The number of beats heard per second by a passenger on the bus will be
Answer» A bus is moving with a velocity 4 m/s towards a wall, the driver sounds a horn of frequency 173 Hz. If the speed of sound in air is 350 m/s. The number of beats heard per second by a passenger on the bus will be

Discussion

1416.	In a bulb, electrical energy is converted into:
Answer» In a bulb, electrical energy is converted into:

Discussion

1417.	Which forces are acting upon an aeroplane taking off into the sky?
Answer» Which forces are acting upon an aeroplane taking off into the sky?

Discussion

1418.	A 60 m long train moving on a straight level track passes a pole in 5 seconds, find the speed of the train and the time it will take to cross a 540 m long bridge.
Answer» A 60 m long train moving on a straight level track passes a pole in 5 seconds, find the speed of the train and the time it will take to cross a 540 m long bridge.

Discussion

1419.	The strips of an electroscope diverge when a charged body is brought in contact with the metal clip. Now the clip is touched gently by our hand. What will happen to the strips? Explain.
Answer» The strips of an electroscope diverge when a charged body is brought in contact with the metal clip. Now the clip is touched gently by our hand. What will happen to the strips? Explain.

Discussion

1420.	In an experiment, a charged object attracts another object. What can we understand from this?
Answer» In an experiment, a charged object attracts another object. What can we understand from this?

Discussion

1421.	an object is placed at a distance 5 f upon 2 from the principal focus of a convex mirror of focal length,f. the magnification of image will be
Answer» an object is placed at a distance 5 f upon 2 from the principal focus of a convex mirror of focal length,f. the magnification of image will be

Discussion

1422.	why seeds soaked in water swell up after some time?
Answer» why seeds soaked in water swell up after some time?

Discussion

1423.	Which of the following happens when a lubricant is applied between two surfaces?
Answer» Which of the following happens when a lubricant is applied between two surfaces?

Discussion

1424.	ntIf the intensity of sound is increased to 16 times, then by how many times will the amplitude change?n
Answer» ntIf the intensity of sound is increased to 16 times, then by how many times will the amplitude change?n

Discussion

1425.	what is difference between thrust and pressure?
Answer» what is difference between thrust and pressure?

Discussion

1426.	a2 b2 c2 Divided by x2 y2 z2
Answer» a2 b2 c2 Divided by x2 y2 z2

Discussion

1427.	the electrophilic centre in the following is(1)CH3CHO(2)CH3CN
Answer» the electrophilic centre in the following is (1)CH3CHO (2)CH3CN

Discussion

1428.	If pressure at The half depth of a lake is equal to 3/4 times the pressure at it's bottom, then find the depth of the lake.[take g= 10 m/so]
Answer» If pressure at The half depth of a lake is equal to 3/4 times the pressure at it's bottom, then find the depth of the lake.[take g= 10 m/so]

Discussion

1429.	How to calculate force of electrostatic when there two mediums other than air
Answer» How to calculate force of electrostatic when there two mediums other than air

Discussion

1430.	Which of the following statements is incorrect?
Answer» Which of the following statements is incorrect?

Discussion

1431.	You are given four salt solutions W, X, Y and Z of different concentrations. W is a 20% salt solution, X is a 35% salt solution, Y is a 10% salt solution whereas Z is a 50% salt solution. When a solid suspended from the hook of a spring balance is fully submerged in all these salt solutions, one by one, then the spring balance will show the minimum reading when the solid is immersed in :(1) solution W(2) solution X(3) solution Y(4) solution Z
Answer» You are given four salt solutions W, X, Y and Z of different concentrations. W is a 20% salt solution, X is a 35% salt solution, Y is a 10% salt solution whereas Z is a 50% salt solution. When a solid suspended from the hook of a spring balance is fully submerged in all these salt solutions, one by one, then the spring balance will show the minimum reading when the solid is immersed in : (1) solution W (2) solution X (3) solution Y (4) solution Z

Discussion

1432.	the charge is not affected by its own motion or other body's motion?
Answer» the charge is not affected by its own motion or other body's motion?

Discussion

1433.	Electric energy consumed at our homes is expressed as
Answer» Electric energy consumed at our homes is expressed as

Discussion

1434.	Charging a metal sphere by contact using a positively charged rod, followed by grounding can result in ________ charge in a metal sphere.
Answer» Charging a metal sphere by contact using a positively charged rod, followed by grounding can result in ________ charge in a metal sphere.

Discussion

1435.	58.Three charges are placed at the vertices of a equilateral triangle of side a . The force experienced by the charged placed at the vertex A in a direction normal to BC is
Answer» 58.Three charges are placed at the vertices of a equilateral triangle of side a . The force experienced by the charged placed at the vertex A in a direction normal to BC is

Discussion

1436.	A body, moving with a constant velocity of 10m/s for 2 seconds, has a displacement of 'A' metres. Afterward, it accelerates at 10m/s2 for 2 seconds covering a displacement of 'B' metres. The ratio of B: A is
Answer» A body, moving with a constant velocity of $10 m / s$ for 2 seconds, has a displacement of 'A' metres. Afterward, it accelerates at $10 m / s^{2}$ for 2 seconds covering a displacement of 'B' metres. The ratio of B: A is

Discussion

1437.	When two charged glass rods, after being rubbed with a silk cloth are brought towards each other, they ___.
Answer» When two charged glass rods, after being rubbed with a silk cloth are brought towards each other, they ___.

Discussion

1438.	Mary saw a few children using a mirror to shine bright sunlight on the eyes of a street dog. They laughed at the discomfort of the dog. Were they doing the right thing? What value were they not showing?
Answer» Mary saw a few children using a mirror to shine bright sunlight on the eyes of a street dog. They laughed at the discomfort of the dog. Were they doing the right thing? What value were they not showing?

Discussion

1439.	Answer the following questions.A. define the term echof. B why do we not here he echoes in ordinary surroundings.
Answer» Answer the following questions.A. define the term echof. B why do we not here he echoes in ordinary surroundings.

Discussion

1440.	friction mein most import†an t concept kaunsa hai
Answer» friction mein most import†an t concept kaunsa hai

Discussion

1441.	What is the largest thing (known) in the universe? What is the smallest thing (known) in the universe?
Answer» What is the largest thing (known) in the universe? What is the smallest thing (known) in the universe?

Discussion

1442.	Question 11Suppose you are outside your home and an earthquake strikes. What precaution would you take to protect yourself?
Answer» Question 11 Suppose you are outside your home and an earthquake strikes. What precaution would you take to protect yourself?

Discussion

1443.	60. A force 10 (- K )cap Newton acts on the origin of the co-ordinate system find the torque about the point( 1 m, - 1 m, 0m)
Answer» 60. A force 10 (- K )cap Newton acts on the origin of the co-ordinate system find the torque about the point( 1 m, - 1 m, 0m)

Discussion

1444.	A brick is 32 cm long,10 cm wide and 10 cm thick. If it weighs 16 Newton and is lying on the ground. Find pressure exerted by brick on the ground.
Answer» A brick is 32 cm long,10 cm wide and 10 cm thick. If it weighs 16 Newton and is lying on the ground. Find pressure exerted by brick on the ground.

Discussion

1445.	The potential difference of a circuit is constant. If the resistance of a circuit is doubled, then its current will become;
Answer» The potential difference of a circuit is constant. If the resistance of a circuit is doubled, then its current will become;

Discussion

1446.	Find and correct the errors in the statement:
Answer» Find and correct the errors in the statement:

Discussion

1447.	A concave mirror produces three times magnified(enlarged)real image of an object placed at 10 cm in front of it. Where is the image located?
Answer» A concave mirror produces three times magnified(enlarged)real image of an object placed at 10 cm in front of it. Where is the image located?

Discussion

1448.	can n be negetive in the quantization of charge (q=ne) ? if n is negetive can we say that electrons have been added to the body i.e the body is negetively charged
Answer» can n be negetive in the quantization of charge (q=ne) ? if n is negetive can we say that electrons have been added to the body i.e the body is negetively charged

Discussion

1449.	What is an electroscope?
Answer» What is an electroscope?

Discussion

1450.	Describe an experiment to demonstrate that there are two kinds of charges.
Answer» Describe an experiment to demonstrate that there are two kinds of charges.

Discussion

Explore topic-wise InterviewSolutions in .

36.A car is moving with a constant speed 10ms along east. If the east direction taken as x axis and the north direction as Y axis then find the component of velocity on the north - east direction.

Why do skiers use long and flat skies on the snow?

A solid spherical black body of radius r and uniform mass distribution is in the free space. It emits power P and its rate of cooling is R, then:

if dimension of critical velocity vc of a liquid flowing through a tube are expressed as n^xp^yr^z where n,p,r are the coefficient of viscosity of liquid, density of liquid and adius of tube respectively, then the values of x,y,z are given by?

What is the relationship between potential difference,work done and charge moved

Question 11 Prepare a list of objects around you, that are electroplated.

What is the difference between a planet and a satellite?

Since action and reaction forces are always equal and opposite, how can motion then take place ? [3 MARKS]

A battery of 20V cells is charged by 220V with a charging current of 15A. If the emf of each cell is 2V and internal resistance is 0.1 ohm, then the series resistance required to be placed in the circuit will be 1) 16 ohm 2) 10 ohm 3) 12 ohm 4) 14 ohm

Which of the following is not a cause for earthquakes?

When we make same image s in our notebook and turn pages of our n.b.,we see the image moving.what is this phenomenon called?

What is the necessary condition for rolling to take place ?

A bus is moving with a velocity 4 m/s towards a wall, the driver sounds a horn of frequency 173 Hz. If the speed of sound in air is 350 m/s. The number of beats heard per second by a passenger on the bus will be

In a bulb, electrical energy is converted into:

Which forces are acting upon an aeroplane taking off into the sky?

A 60 m long train moving on a straight level track passes a pole in 5 seconds, find the speed of the train and the time it will take to cross a 540 m long bridge.

The strips of an electroscope diverge when a charged body is brought in contact with the metal clip. Now the clip is touched gently by our hand. What will happen to the strips? Explain.

In an experiment, a charged object attracts another object. What can we understand from this?

an object is placed at a distance 5 f upon 2 from the principal focus of a convex mirror of focal length,f. the magnification of image will be

why seeds soaked in water swell up after some time?

Which of the following happens when a lubricant is applied between two surfaces?

ntIf the intensity of sound is increased to 16 times, then by how many times will the amplitude change?n

what is difference between thrust and pressure?

a2 b2 c2 Divided by x2 y2 z2

the electrophilic centre in the following is(1)CH3CHO(2)CH3CN

If pressure at The half depth of a lake is equal to 3/4 times the pressure at it's bottom, then find the depth of the lake.[take g= 10 m/so]

How to calculate force of electrostatic when there two mediums other than air

Which of the following statements is incorrect?

the charge is not affected by its own motion or other body's motion?

Electric energy consumed at our homes is expressed as

Charging a metal sphere by contact using a positively charged rod, followed by grounding can result in ________ charge in a metal sphere.

58.Three charges are placed at the vertices of a equilateral triangle of side a . The force experienced by the charged placed at the vertex A in a direction normal to BC is

A body, moving with a constant velocity of 10m/s for 2 seconds, has a displacement of 'A' metres. Afterward, it accelerates at 10m/s2 for 2 seconds covering a displacement of 'B' metres. The ratio of B: A is

When two charged glass rods, after being rubbed with a silk cloth are brought towards each other, they ___.

Mary saw a few children using a mirror to shine bright sunlight on the eyes of a street dog. They laughed at the discomfort of the dog. Were they doing the right thing? What value were they not showing?

Answer the following questions.A. define the term echof. B why do we not here he echoes in ordinary surroundings.

friction mein most import†an t concept kaunsa hai

What is the largest thing (known) in the universe? What is the smallest thing (known) in the universe?

Question 11Suppose you are outside your home and an earthquake strikes. What precaution would you take to protect yourself?

60. A force 10 (- K )cap Newton acts on the origin of the co-ordinate system find the torque about the point( 1 m, - 1 m, 0m)

A brick is 32 cm long,10 cm wide and 10 cm thick. If it weighs 16 Newton and is lying on the ground. Find pressure exerted by brick on the ground.

The potential difference of a circuit is constant. If the resistance of a circuit is doubled, then its current will become;

Find and correct the errors in the statement:

A concave mirror produces three times magnified(enlarged)real image of an object placed at 10 cm in front of it. Where is the image located?

can n be negetive in the quantization of charge (q=ne) ? if n is negetive can we say that electrons have been added to the body i.e the body is negetively charged

What is an electroscope?

Describe an experiment to demonstrate that there are two kinds of charges.