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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.
| 4451. |
61.Does friction always oppose the motion? |
| Answer» 61.Does friction always oppose the motion? | |
| 4452. |
A Kundt's tube apparatus has a copper rod of length 1m clamped at 25 cm from one of the ends. The tube contains air in which the speed of the sound is 340 m/s. The powder collects in heaps separated by a distance of 5 cm. Find the speed of sound waves in copper. |
| Answer» A Kundt's tube apparatus has a copper rod of length 1m clamped at 25 cm from one of the ends. The tube contains air in which the speed of the sound is 340 m/s. The powder collects in heaps separated by a distance of 5 cm. Find the speed of sound waves in copper. | |
| 4453. |
WHAT WILL BE THE ATTRACTIVE FORCE BETWEEN TWO POINT CHARGE IF A CUPPER SHEATH OF WIDTH d/2 IS INSERTED BETWEEN THE POINT CHARGES WHEN THE DISTANCE BETWEEN THE POINT CHARGES IS d AND THE ATTRACTION FORCE BETWEEN THEM IS f WHEN NO CUPPER SHEATH IS PRESENT ? |
| Answer» WHAT WILL BE THE ATTRACTIVE FORCE BETWEEN TWO POINT CHARGE IF A CUPPER SHEATH OF WIDTH d/2 IS INSERTED BETWEEN THE POINT CHARGES WHEN THE DISTANCE BETWEEN THE POINT CHARGES IS d AND THE ATTRACTION FORCE BETWEEN THEM IS f WHEN NO CUPPER SHEATH IS PRESENT ? | |
| 4454. |
A sharp knife cuts better than a blunt knife. Which of the following options gives the correct reason for this? |
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Answer» A sharp knife cuts better than a blunt knife. Which of the following options gives the correct reason for this? |
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| 4455. |
A rectangular gate 3m * 1m stands vertical in water hinged at mid point find force applied at bottom of gate to prevent rotation and keep gate in equilibrium is |
| Answer» A rectangular gate 3m * 1m stands vertical in water hinged at mid point find force applied at bottom of gate to prevent rotation and keep gate in equilibrium is | |
| 4456. |
What are forces of adhesion and cohesion |
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Answer» What are forces of adhesion and cohesion |
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| 4457. |
The density of a wooden block is 0.8 g/cm3. The percentage by volume of the block immersed in the water is |
| Answer» The density of a wooden block is 0.8 g/cm3. The percentage by volume of the block immersed in the water is | |
| 4458. |
explain electroplating. |
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Answer» explain electroplating. |
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| 4459. |
what is the formula of density |
| Answer» what is the formula of density | |
| 4460. |
12. In the given figure , l and moon are two plane mirrors parallel to each other . Prove that the incident ray PQ is parallel to the reflected ray RS. |
| Answer» 12. In the given figure , l and moon are two plane mirrors parallel to each other . Prove that the incident ray PQ is parallel to the reflected ray RS. | |
| 4461. |
What is Archemedie's principle? |
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Answer» What is Archemedie's principle? |
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| 4462. |
3.A ray of light along the line 3x-2y+3=0 is incident on line mirror 2x+3y-7=0 .Equation of reflected ray is |
| Answer» 3.A ray of light along the line 3x-2y+3=0 is incident on line mirror 2x+3y-7=0 .Equation of reflected ray is | |
| 4463. |
Two identical cubes A and B are placed in a tank containing a liquid as shown below. Choose the correct statement regarding pressures exerted on them. |
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Answer» Two identical cubes A and B are placed in a tank containing a liquid as shown below. Choose the correct statement regarding pressures exerted on them. |
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| 4464. |
The planets located inside the asteroid belt are made of rocks.Why? |
| Answer» The planets located inside the asteroid belt are made of rocks.Why? | |
| 4465. |
54. Dead sea is the deepest hypersaline lake in the world. If it contains 117 g NACL and 285 g MgCl2 per 100 L Of water . Then molarity of cl- in sea water is? |
| Answer» 54. Dead sea is the deepest hypersaline lake in the world. If it contains 117 g NACL and 285 g MgCl2 per 100 L Of water . Then molarity of cl- in sea water is? | |
| 4466. |
Which of the following material can be used as a core for making an electromagnet? |
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Answer» Which of the following material can be used as a core for making an electromagnet? |
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| 4467. |
How does rubber sucker work |
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Answer» How does rubber sucker work |
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| 4468. |
In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror? Give reason for your answer. |
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Answer» In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror? Give reason for your answer. |
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| 4469. |
Two astronauts are floating close to each other in space. Can they talk to each other without using any special device? Give reasons. |
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Answer» Two astronauts are floating close to each other in space. Can they talk to each other without using any special device? Give reasons. |
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| 4470. |
If a toy fan is connected across a battery for 2 minutes and we know that a charge transfer of 120 C takes place then find out the current in the circuit for that period of time. |
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Answer» If a toy fan is connected across a battery for 2 minutes and we know that a charge transfer of 120 C takes place then find out the current in the circuit for that period of time. |
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| 4471. |
4 A 4 B A +A A B 1 B B B |
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Answer» 4 A 4 B A +A A B 1 B B B |
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| 4472. |
A solid weights 50gf in the air and 44gf when completely immersed in water. Calculate relative density of the solid, upthrust and density of the solid. PLZZ solve this question |
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Answer» A solid weights 50gf in the air and 44gf when completely immersed in water. Calculate relative density of the solid, upthrust and density of the solid. PLZZ solve this question |
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| 4473. |
69. If the distance of Uranus from the sun is 2870000000km, then this distance in scientific notation is written an |
| Answer» 69. If the distance of Uranus from the sun is 2870000000km, then this distance in scientific notation is written an | |
| 4474. |
Find the radian measures corresponding to the following degree measures :(1) 25∘(2)−47∘30′(3) 240∘(4) 520∘ |
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Answer» Find the radian measures corresponding to the following degree measures : (1) 25∘ (2)−47∘30′ (3) 240∘ (4) 520∘ |
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| 4475. |
why does the wire become hot when current is passed in it |
| Answer» why does the wire become hot when current is passed in it | |
| 4476. |
A substance has magnetic permeability equal to 22×10−4 Tm/A. The value of magnetic susceptibility is |
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Answer» A substance has magnetic permeability equal to 22×10−4 Tm/A. The value of magnetic susceptibility is |
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| 4477. |
137.The frequency of vibration of a string depends on the length between nodes , tension in string and it's mass per unit length. What is its expression ?? |
| Answer» 137.The frequency of vibration of a string depends on the length between nodes , tension in string and it's mass per unit length. What is its expression ?? | |
| 4478. |
What do you understand by the focus and focal length of a spherical mirror ? Show them on the separate diagrams for each of a concave mirror and a convex mirror. |
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Answer» What do you understand by the focus and focal length of a spherical mirror ? Show them on the separate diagrams for each of a concave mirror and a convex mirror. |
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| 4479. |
5.How can a balanced force change shape of an object? |
| Answer» 5.How can a balanced force change shape of an object? | |
| 4480. |
0.5 g of fuming h2SO4 oleum is diluted with 100 ml of water.This solution is completely neutralised by 26.7 ml of 0.4 NaOH.The correct statement is/are:1)mass of so3 is 0.104 g2)% of free SO3=20.73)Normality of H2SO4 for neutralisation is 0.2 N4)Weight of H2SO4 is 0.104 g |
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Answer» 0.5 g of fuming h2SO4 oleum is diluted with 100 ml of water.This solution is completely neutralised by 26.7 ml of 0.4 NaOH.The correct statement is/are: 1)mass of so3 is 0.104 g 2)% of free SO3=20.7 3)Normality of H2SO4 for neutralisation is 0.2 N 4)Weight of H2SO4 is 0.104 g |
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| 4481. |
Question 22What are the limitations in obtaining energy from wind? |
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Answer» Question 22 |
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| 4482. |
Work done in raising a stone of mass5kg and relative density3lying at the bed of lake through a height 5meter |
| Answer» Work done in raising a stone of mass5kg and relative density3lying at the bed of lake through a height 5meter | |
| 4483. |
What is the scientific name for the following ? The number of vibrations made per second. |
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Answer» What is the scientific name for the following ? The number of vibrations made per second. |
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| 4484. |
Why does a pencil partly immersed in water appears to be bent inside the water? |
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Answer» Why does a pencil partly immersed in water appears to be bent inside the water? |
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| 4485. |
As per the concept of the gravity. -Every objects attract each other. Then, Why is->Human beings not attract anything? ->A ball not attracting anything to its center? |
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Answer» As per the concept of the gravity. - Every objects attract each other. Then, Why is ->Human beings not attract anything? ->A ball not attracting anything to its center? |
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| 4486. |
Identify from the following, the processes by which an uncharged body can be charged. (i) Conduction (ii) Induction (iii) Friction (iv) Repulsion |
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Answer» Identify from the following, the processes by which an uncharged body can be charged.
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| 4487. |
Can elevator in metro station produce friction? |
| Answer» Can elevator in metro station produce friction? | |
| 4488. |
Drawing a bucket of water from a well is an example of |
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Answer» Drawing a bucket of water from a well is an example of |
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| 4489. |
what are applications of artificial satellites? |
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Answer» what are applications of artificial satellites? |
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| 4490. |
28. Four ideal cells each of emf 10V are connected as shown in figure. The current through 2 ohm resistor is |
| Answer» 28. Four ideal cells each of emf 10V are connected as shown in figure. The current through 2 ohm resistor is | |
| 4491. |
If we are seated inside a Bus at rest and the Bus suddenly starts, we tend to fall back. Why ? |
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Answer» If we are seated inside a Bus at rest and the Bus suddenly starts, we tend to fall back. Why ? |
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| 4492. |
What does the word "constellation" mean? |
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Answer» What does the word "constellation" mean? |
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| 4493. |
a spherical mirror is polished on both sides. When the convex side is used as a mirror the image is erect with magnification 1/4. The magnification when the concave side is used as a mirror for same object distance from the mirror, is |
| Answer» a spherical mirror is polished on both sides. When the convex side is used as a mirror the image is erect with magnification 1/4. The magnification when the concave side is used as a mirror for same object distance from the mirror, is | |
| 4494. |
A singly reinforced concrete beam has rectangular section 230 mm wide x 460 mm effective depth. At a section under consideration there are two 16 mm diameter bent-up bars at 45oand 6 mm diameter two legged stirrups at a spacing of 200 mm centre to centre. The grade of concrete is M20. The reinforcement is HYSD 415. The design shear strength of concrete is 0.6 N/mm2and maximum shear stress is 2.8 N/mm2. Using limit state method, determine the value of factored shear force to be permitted at the section.157.4 |
Answer» A singly reinforced concrete beam has rectangular section 230 mm wide x 460 mm effective depth. At a section under consideration there are two 16 mm diameter bent-up bars at 45oand 6 mm diameter two legged stirrups at a spacing of 200 mm centre to centre. The grade of concrete is M20. The reinforcement is HYSD 415. The design shear strength of concrete is 0.6 N/mm2and maximum shear stress is 2.8 N/mm2. Using limit state method, determine the value of factored shear force to be permitted at the section.
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| 4495. |
For half the year we can see one side of the Moon, and for the other half, the other side of the Moon. Do you agree? Give reasons. |
| Answer» For half the year we can see one side of the Moon, and for the other half, the other side of the Moon. Do you agree? Give reasons. | |
| 4496. |
43.When block reaches bottommost point find net force on it Why can't normal reaction balance mg+centrifugal force.if it does then why we have net force not equal zero |
| Answer» 43.When block reaches bottommost point find net force on it Why can't normal reaction balance mg+centrifugal force.if it does then why we have net force not equal zero | |
| 4497. |
An object is at a distance of 0.5m in front of a plane mirror. The distance between the object and its image in the mirror is |
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Answer» An object is at a distance of 0.5m in front of a plane mirror. The distance between the object and its image in the mirror is |
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| 4498. |
You spill a bucket of soapy water on a marble floor accidently. Would it be easier or more difficult for you to walk on the floor now? Why? |
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Answer» You spill a bucket of soapy water on a marble floor accidently. Would it be easier or more difficult for you to walk on the floor now? Why? |
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| 4499. |
Question 4A rectangular plot is given for constructing a house having a measurement of 40m long and 15m in the front. According to the laws, a minimum of 3m, wide place should be left in the front and back each and 2m wide space on each of other sides. Find the largest area where house can be constructed. |
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Answer» Question 4 A rectangular plot is given for constructing a house having a measurement of 40m long and 15m in the front. According to the laws, a minimum of 3m, wide place should be left in the front and back each and 2m wide space on each of other sides. Find the largest area where house can be constructed. |
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| 4500. |
Current through a wire decreases linearly from 4 A to zero in 10 s. Calculate the charge flown through the wire during this interval of time. |
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Answer» Current through a wire decreases linearly from 4 A to zero in 10 s. Calculate the charge flown through the wire during this interval of time. |
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