InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1401. |
what is the meaning of dx/dt? what is the meaning of limit of average velocity |
| Answer» what is the meaning of dx/dt? what is the meaning of limit of average velocity | |
| 1402. |
When current in current-carrying conducor is increased |
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Answer» When current in current-carrying conducor is increased |
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| 1403. |
Choose the ray diagram which shows the image formation? |
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Answer» Choose the ray diagram which shows the image formation? |
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| 1404. |
In transfer of heat topic, the heat transfers from one object to another until the heat becomes equal. But why does the heat not transfer from a hot box to another object?? |
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Answer» In transfer of heat topic, the heat transfers from one object to another until the heat becomes equal. But why does the heat not transfer from a hot box to another object?? |
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| 1405. |
2.straight line in such way that it covers 1st half distance with speed 3 m/s and nextA particle moves on ahalf distance in 2 equal time intervals with speeds 4.5 m/s and 7.5 m/s respectively. Find average speedof the particle. |
| Answer» 2.straight line in such way that it covers 1st half distance with speed 3 m/s and nextA particle moves on ahalf distance in 2 equal time intervals with speeds 4.5 m/s and 7.5 m/s respectively. Find average speedof the particle. | |
| 1406. |
Given that the diameters of Sun and Earth are 1.4×109 and 1.27×107. Which option gives the correct comparison between diameters of Sun and Earth? |
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Answer» Given that the diameters of Sun and Earth are 1.4×109 and 1.27×107. Which option gives the correct comparison between diameters of Sun and Earth? |
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| 1407. |
Change the speed of 6m/s into km/h. |
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Answer» Change the speed of 6m/s into km/h. |
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| 1408. |
Two solid sphere of iron whose diameters are 24cm,16cm are melted into a hemispherical shell. If outer radius and inner radius of hemispherical shell are 19 cm and x cm respectively,then and why (a) 13.5 |
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Answer» Two solid sphere of iron whose diameters are 24cm,16cm are melted into a hemispherical shell. If outer radius and inner radius of hemispherical shell are 19 cm and x cm respectively,then and why (a) 13.5 |
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| 1409. |
Question 2 (c)In Activity 13.7, how do we think the displacement of rod AB will be affected if(iii) length of the rod AB is increased? |
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Answer» Question 2 (c) In Activity 13.7, how do we think the displacement of rod AB will be affected if (iii) length of the rod AB is increased? |
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| 1410. |
The total work done on a particle is equal to the change in its kinetic energy. This is applicable(1) Always(3) Only in inertial frames(2) Only if the conservative forces are acting on it(4) Only when pseudo forces are absent |
| Answer» The total work done on a particle is equal to the change in its kinetic energy. This is applicable(1) Always(3) Only in inertial frames(2) Only if the conservative forces are acting on it(4) Only when pseudo forces are absent | |
| 1411. |
Does energy increase when a dielectric has been inserted? And if yes then how? |
| Answer» Does energy increase when a dielectric has been inserted? And if yes then how? | |
| 1412. |
Why is water used as a coolant in motor vehicles and machines? |
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Answer» Why is water used as a coolant in motor vehicles and machines? |
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| 1413. |
If a+b+c=6, 1a+1b+1c=32, then ab+ac+ba+bc+ca+cb=__________. |
| Answer» If | |
| 1414. |
Two springs are connected to a block of mass M placed on a frictionless surface as shown below. If both the springs have a spring constant k, the frequency of oscillation of block is |
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Answer» Two springs are connected to a block of mass M placed on a frictionless surface as shown below. If both the springs have a spring constant k, the frequency of oscillation of block is |
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| 1415. |
A man is 160 m tall and his eyes are 10 cm below the top of his head. In order to see this entire height right from top to head, he uses a plane mirror kept at a distance 1 m from him. The minimum length of the plane mirror is |
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Answer» A man is 160 m tall and his eyes are 10 cm below the top of his head. In order to see this entire height right from top to head, he uses a plane mirror kept at a distance 1 m from him. The minimum length of the plane mirror is |
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| 1416. |
A man runs towards a mirror with a speed of 10 m/s . Then what is the seed of his image with respect to himself ? |
| Answer» A man runs towards a mirror with a speed of 10 m/s . Then what is the seed of his image with respect to himself ? | |
| 1417. |
What are conductors? What are insulators? [2 MARKS] |
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Answer» What are conductors? What are insulators? [2 MARKS] |
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| 1418. |
What is the name of the bacteria that is present in human intestines whose presence in water indicates contamination by disease causing micro-organisms? |
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Answer» What is the name of the bacteria that is present in human intestines whose presence in water indicates contamination by disease causing micro-organisms? |
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| 1419. |
Question 10Amit buys few grams of gold at the poles as per the instruction of one of his friends. He hands over the same when he meets him at the equator. Will the friend agree with the weight of gold bought? If not, why? [Hint: The value of g is greater at the poles than at the equator]. |
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Answer» Question 10 Amit buys few grams of gold at the poles as per the instruction of one of his friends. He hands over the same when he meets him at the equator. Will the friend agree with the weight of gold bought? If not, why? [Hint: The value of g is greater at the poles than at the equator]. |
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| 1420. |
Write answers the following questions. (a) What is meant by the melting point of substance? (b) What is one calorie of heat? (c) Where is a calorimeter used? (d) What is a special characteristic of mercury? |
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Answer» Write answers the following questions. (a) What is meant by the melting point of substance? (b) What is one calorie of heat? (c) Where is a calorimeter used? (d) What is a special characteristic of mercury? |
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| 1421. |
Differentiate between heat and temperature |
| Answer» Differentiate between heat and temperature | |
| 1422. |
When Ice Cubes are kept inside a thermocol box It does not melt fast. Why?? |
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Answer» When Ice Cubes are kept inside a thermocol box It does not melt fast. Why?? |
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| 1423. |
Abirami has covered some distance with a speed of 20 km/hr in 5 hrs. And then some more distance in another 5 hrs, with a speed of 30 km/hr. Find the average speed for her entire journey. |
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Answer» Abirami has covered some distance with a speed of 20 km/hr in 5 hrs. And then some more distance in another 5 hrs, with a speed of 30 km/hr. Find the average speed for her entire journey. |
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| 1424. |
The graph drawn with object dis†an ce along abscissa and image dis†an ce along ordinate for a convex lens is?Explain by drawin graph. |
| Answer» The graph drawn with object dis†an ce along abscissa and image dis†an ce along ordinate for a convex lens is?Explain by drawin graph. | |
| 1425. |
An ant drags a piece of sweet from origin (0,0) to (3,4) in the co-ordinate axes. What is the work done by the ant if it applies a force of 1 N (1 unit = 1 metre)? |
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Answer» An ant drags a piece of sweet from origin (0,0) to (3,4) in the co-ordinate axes. What is the work done by the ant if it applies a force of 1 N (1 unit = 1 metre)? |
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| 1426. |
Question 6 An erect and enlarged image can be formed by (a) only a convex mirror. (b) only a concave mirror. (c) only a plane mirror. (d) both convex and concave mirrors. |
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Answer» Question 6 An erect and enlarged image can be formed by (a) only a convex mirror. (b) only a concave mirror. (c) only a plane mirror. (d) both convex and concave mirrors. |
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| 1427. |
Which of the following can be used to form a real image? (a) Concave mirror only (b) Plane mirror only. (c) Convex mirror only. (d) Both concave and convex mirrors. |
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Answer» Which of the following can be used to form a real image? (a) Concave mirror only (b) Plane mirror only. (c) Convex mirror only. (d) Both concave and convex mirrors. |
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| 1428. |
What is an Odometer and where is it commonly found? [2 MARK] |
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Answer» What is an Odometer and where is it commonly found? [2 MARK] |
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| 1429. |
Given room temperature as 38 deg. celsius, which tin would cool first - Tin 1 at 45 deg. celsius or Tin 2 is at 55 deg. celsius? |
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Answer» Given room temperature as 38 deg. celsius, which tin would cool first - Tin 1 at 45 deg. celsius or Tin 2 is at 55 deg. celsius? |
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| 1430. |
the equilibrium cons†an t Kp for the reaction PCl5 = PCl3 +Cl2 is 16.If the volume of the container is reduced to one-half its original volume,the value of Kp for the reaction |
| Answer» the equilibrium cons†an t Kp for the reaction PCl5 = PCl3 +Cl2 is 16.If the volume of the container is reduced to one-half its original volume,the value of Kp for the reaction | |
| 1431. |
A rectangular tin sheet is 12 cm long and 5 cm broad. It is rolled along its length to form a cylinder by making the opposite edges just to touch each other. The volume of the cylinder is __________. |
| Answer» A rectangular tin sheet is 12 cm long and 5 cm broad. It is rolled along its length to form a cylinder by making the opposite edges just to touch each other. The volume of the cylinder is __________. | |
| 1432. |
Q54)It can be inferred that the spendthrift in paragraph one and the poor settler mentioned in paragraph two are alike in that they are- |
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Answer» Q54)It can be inferred that the spendthrift in paragraph one and the poor settler mentioned in paragraph two are alike in that they are- |
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| 1433. |
Glycerine flows steadily through a horizontal tube of l=1.5m and r=1cm.If the amt of glycerine flowing per sec at one end is 4*10-3kg/s.What is the pressure difference bw the 2 ends of the tube. |
| Answer» Glycerine flows steadily through a horizontal tube of l=1.5m and r=1cm.If the amt of glycerine flowing per sec at one end is 4*10-3kg/s.What is the pressure difference bw the 2 ends of the tube. | |
| 1434. |
77.nature of electric field, the electrostatic field lines will not form any closed loop. Click here to view |
| Answer» 77.nature of electric field, the electrostatic field lines will not form any closed loop. Click here to view | |
| 1435. |
State the zeroth law of thermodynamics |
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Answer» State the zeroth law of thermodynamics |
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| 1436. |
A simple pendulum oscillates in the air with time period T and amplitude A. As the time passes (a)T&A both decreases (b)T inc and A is constant (c)T inc and A decrease (d)T decrease and A is constant |
| Answer» A simple pendulum oscillates in the air with time period T and amplitude A. As the time passes (a)T&A both decreases (b)T inc and A is constant (c)T inc and A decrease (d)T decrease and A is constant | |
| 1437. |
the volume of carbon dioxide gas evolved at stp by heating 7.3 gm of magnesium bcarbonate will be |
| Answer» the volume of carbon dioxide gas evolved at stp by heating 7.3 gm of magnesium bcarbonate will be | |
| 1438. |
A body at rest explodes into two pieces of unequal mass.The parts will move Arbitrarily In the same direction In opposite directions with equal speeds In opposite directions with unequal speeds |
| Answer» A body at rest explodes into two pieces of unequal mass.The parts will move Arbitrarily In the same direction In opposite directions with equal speeds In opposite directions with unequal speeds | |
| 1439. |
What is the mechanical unit of power? State it's relation with its SI unit? |
| Answer» What is the mechanical unit of power? State it's relation with its SI unit? | |
| 1440. |
Question 17Observe the following circuits carefully. In which circuit will the bulb glow. Write ‘Yes’ or ‘No’ in the blank space provided along each of the circuit given in the figure. |
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Answer» Question 17 Observe the following circuits carefully. In which circuit will the bulb glow. Write ‘Yes’ or ‘No’ in the blank space provided along each of the circuit given in the figure.    |
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| 1441. |
A boy is observing his image in a plane mirror. The distance between the mirror and his image is 10 m. If he moves 2 m towards the mirror, then the distance between the boy and his image will be: |
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Answer» A boy is observing his image in a plane mirror. The distance between the mirror and his image is 10 m. If he moves 2 m towards the mirror, then the distance between the boy and his image will be: |
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| 1442. |
What is the difference between periodic motion and oscillatory motion? |
| Answer» What is the difference between periodic motion and oscillatory motion? | |
| 1443. |
find electric flux by cube in a non uniform electric field ehare electric field is represented as = alpha*xi^ where alpha is a constant |
| Answer» find electric flux by cube in a non uniform electric field ehare electric field is represented as = alpha*xi^ where alpha is a constant | |
| 1444. |
A scooterist covers a distance of 3 kilometres in 5 minutes. Calculate his speed in:(a) centimetres per second (cm/s)(b) metres per second (m/s)(c) kilometres per hour (km/h) |
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Answer» A scooterist covers a distance of 3 kilometres in 5 minutes. Calculate his speed in: (a) centimetres per second (cm/s) (b) metres per second (m/s) (c) kilometres per hour (km/h) |
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| 1445. |
During the first 18 min of a 60 min trip , a car has an average speed of 11m/s . What should be the average speed for remaining 42 min so that car is having an average speed of 21 M/s for the entire trip ? |
| Answer» During the first 18 min of a 60 min trip , a car has an average speed of 11m/s . What should be the average speed for remaining 42 min so that car is having an average speed of 21 M/s for the entire trip ? | |
| 1446. |
18. calculate change in entropy at 298K for the reaction in which urea is formed from NH3 and CO2. The standard entropy of NH2CONH2 ,CO2,NH3,H2O(l) are 174,213.7,195 and 75Kj/mol |
| Answer» 18. calculate change in entropy at 298K for the reaction in which urea is formed from NH3 and CO2. The standard entropy of NH2CONH2 ,CO2,NH3,H2O(l) are 174,213.7,195 and 75Kj/mol | |
| 1447. |
While doing an experiment to measure the temperature at which water boils, Ram keeps the laboratory thermometer completely immersed in water without touching the surface or bottom of the beaker. On the other hand does Shyam does the same experiment with the thermometer touching the bottom of the beaker. Who is more likely to get an accurate reading? |
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Answer» While doing an experiment to measure the temperature at which water boils, Ram keeps the laboratory thermometer completely immersed in water without touching the surface or bottom of the beaker. On the other hand does Shyam does the same experiment with the thermometer touching the bottom of the beaker. Who is more likely to get an accurate reading? |
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| 1448. |
Which of the following is true for a multistranded wire? |
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Answer» Which of the following is true for a multistranded wire? |
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| 1449. |
Eight wires cut the page perpendicularly at the points shown in figure. A wire labelled with the integer k, (k=1,2,....8) bears the current ki0. For those with odd k, the current flows up out of the page; for those with even k, current flows down into the page. The value of ∮→B⋅d→l along the close path (as shown in the figure) in the direction indicated by the arrow is,[Take out of the page as positive and into the page as negative] |
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Answer» Eight wires cut the page perpendicularly at the points shown in figure. A wire labelled with the integer k, (k=1,2,....8) bears the current ki0. For those with odd k, the current flows up out of the page; for those with even k, current flows down into the page. The value of ∮→B⋅d→l along the close path (as shown in the figure) in the direction indicated by the arrow is, |
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| 1450. |
Electroplating is a proces in which: |
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Answer» Electroplating is a proces in which: |
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