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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.
| 6601. |
ram travels one third of the total time with velocity 40km/h and two third of the total time with velocity 60km/h. find the average velocity of ram |
| Answer» ram travels one third of the total time with velocity 40km/h and two third of the total time with velocity 60km/h. find the average velocity of ram | |
| 6602. |
In which part of the ear are sound waves amplified? |
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Answer» In which part of the ear are sound waves amplified? |
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| 6603. |
If two mirrors are kept at 600 to each other, then the number of images formed by them is |
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Answer» If two mirrors are kept at 600 to each other, then the number of images formed by them is |
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| 6604. |
Two identical rods A and B made up of iron and brass respectively are heated to the same temperature rise. The final length will be. |
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Answer» Two identical rods A and B made up of iron and brass respectively are heated to the same temperature rise. The final length will be. |
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| 6605. |
A cubical blick of side 1 m of specific gravity K(K>1) is placed at the bottom of a vessel containing water. Normal force ( in Newton) by the stands of the vessel on the block is |
| Answer» A cubical blick of side 1 m of specific gravity K(K>1) is placed at the bottom of a vessel containing water. Normal force ( in Newton) by the stands of the vessel on the block is | |
| 6606. |
nta particle of mass m moves with constant speed v on a citcular path of radius r. find magnitude of average force on it in half revolutionn |
| Answer» nta particle of mass m moves with constant speed v on a citcular path of radius r. find magnitude of average force on it in half revolutionn | |
| 6607. |
If average velocity of a particle moving on a straight line is zero in a time interval then why cannot the acceleration be zero |
| Answer» If average velocity of a particle moving on a straight line is zero in a time interval then why cannot the acceleration be zero | |
| 6608. |
Choose the correct one: |
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Answer» Choose the correct one: |
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| 6609. |
Two Particles A and B having charges 8*10^-6 C and +2*10^-6 C respectively are held with a separation of 20cm. Where should a third particle C be placed so that it does not experience a net electric force |
| Answer» Two Particles A and B having charges 8*10^-6 C and +2*10^-6 C respectively are held with a separation of 20cm. Where should a third particle C be placed so that it does not experience a net electric force | |
| 6610. |
A 6kg block is placed on a 4 kg block and a force of 50N is applied vertically upwards on 6 kb block.Find tension at the midpoint of 6 kg blo |
| Answer» A 6kg block is placed on a 4 kg block and a force of 50N is applied vertically upwards on 6 kb block.Find tension at the midpoint of 6 kg blo | |
| 6611. |
A bus starts from the rest, accelerates constantly and takes 50 seconds to get the speed of 10 ms−1. If the mass of the bus along with passengers is 10000 kg, calculate the force applied (in N) by the engine of the bus to push the bus to the speed of 10 ms−1? |
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Answer» A bus starts from the rest, accelerates constantly and takes 50 seconds to get the speed of 10 ms−1. If the mass of the bus along with passengers is |
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| 6612. |
132. List of sign convention of all terms used for mirrors and lens |
| Answer» 132. List of sign convention of all terms used for mirrors and lens | |
| 6613. |
A object moves with uniform positive acceleration. Its velocity-time graph will be (a) A straight line parallel to the time axis (b) A straight line inclined at an obtuse angle to the time axis (c) A straight line inclined at an acute angle to the time axis (d) None of these. |
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Answer» A object moves with uniform positive acceleration. Its velocity-time graph will be |
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| 6614. |
What are the important formulas used in chapter sound? |
| Answer» What are the important formulas used in chapter sound? | |
| 6615. |
In a block and tackle system, a load of 7.5 Kg is raised with an effort of 2.5 kgf. If there are three pulleys in the system, find its efficiency. |
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Answer» In a block and tackle system, a load of 7.5 Kg is raised with an effort of 2.5 kgf. If there are three pulleys in the system, find its efficiency. |
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| 6616. |
Question 70(i)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.At what time did he start and end his journey? |
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Answer» Question 70(i) 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.  At what time did he start and end his journey? |
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| 6617. |
How does a turtle walk? What does the turtle carry on its back? Where does the turtle go when it is tired? |
Answer»
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| 6618. |
19 what is the cause ofi electromagnetic nduction? |
| Answer» 19 what is the cause ofi electromagnetic nduction? | |
| 6619. |
How many joules are there in one kilowatt-hour ? |
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Answer» How many joules are there in one kilowatt-hour ? |
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| 6620. |
The motion of the body falling from rest in a medium is given by equation dv/DT = 1- 2v. The velocity at any time t is |
| Answer» The motion of the body falling from rest in a medium is given by equation dv/DT = 1- 2v. The velocity at any time t is | |
| 6621. |
28. A force of 20N distributed uniformly over an area of 20 cm� find pressure in pascal |
| Answer» 28. A force of 20N distributed uniformly over an area of 20 cm� find pressure in pascal | |
| 6622. |
Show how you would connect three resistors, each of resistance 6Ω, so that thecombination has a resistance of (i) 9Ω (ii) 2Ω |
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Answer» Show how you would connect three resistors, each of resistance 6Ω, so that the combination has a resistance of (i) 9Ω (ii) 2Ω |
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| 6623. |
Let ω be the angular velocity of the earth rotation about its axis.assume that the acceleration due to gravity on the earth surface has same value at the equator and the poles.an object weighed at the equator gives the same reading taken at a depth d below earth surface at a pole(d |
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Answer» Let ω be the angular velocity of the earth rotation about its axis.assume that the acceleration due to gravity on the earth surface has same value at the equator and the poles.an object weighed at the equator gives the same reading taken at a depth d below earth surface at a pole(d< |
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| 6624. |
A converging lens of focal length 20 cm and a converging mirror of focal length 10 cm are placed 60 cm apart with common principal axis. A point source is placed inbetween the lens and the mirror at a distance of 50 cm fromthe lens. Find the locations of the two images formed. |
| Answer» A converging lens of focal length 20 cm and a converging mirror of focal length 10 cm are placed 60 cm apart with common principal axis. A point source is placed inbetween the lens and the mirror at a distance of 50 cm fromthe lens. Find the locations of the two images formed. | |
| 6625. |
What are the coordinates of a point on the Y-axis and at a distance of 5 units in the negative direction of y-axis? |
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Answer» What are the coordinates of a point on the Y-axis and at a distance of 5 units in the negative direction of y-axis? |
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| 6626. |
31. A body moves for a total of nine second starting from rest with uniform acceleration and then with uniform retardation ,which is twice the value of acceleration and then stops.The duration of uniform acceleration is |
| Answer» 31. A body moves for a total of nine second starting from rest with uniform acceleration and then with uniform retardation ,which is twice the value of acceleration and then stops.The duration of uniform acceleration is | |
| 6627. |
If you drop a stone and a piece of paper to the earth, they don't take the same time to reach the earth because: |
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Answer» If you drop a stone and a piece of paper to the earth, they don't take the same time to reach the earth because: |
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| 6628. |
Same amount of force (10 N) is acting on two bodies in two different ways. In case of body 1: Force is acting in the direction of displacement of the body. In case of body 2: Force is making an angle of 60° with the direction of displacement. If the displacement is 'd' meters in both the cases, then what is the relation between the work done in both the cases? |
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Answer» Same amount of force (10 N) is acting on two bodies in two different ways. |
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| 6629. |
10.Mass of one atom is 2.66 g this mass equal to in amu and joules |
| Answer» 10.Mass of one atom is 2.66 g this mass equal to in amu and joules | |
| 6630. |
Two metal balls of same radius are placed in a homogenous poorly conducting medium with resistivity "r" find resistance if they are seperated by a large distance .(the balls are oppositely charged). |
| Answer» Two metal balls of same radius are placed in a homogenous poorly conducting medium with resistivity "r" find resistance if they are seperated by a large distance .(the balls are oppositely charged). | |
| 6631. |
A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm in front of the mirror. The focal length of this mirror is(a) -30 cm(b) -20 cm(c) -40 cm(d) -60 cm |
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Answer» A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm in front of the mirror. The focal length of this mirror is (a) -30 cm (b) -20 cm (c) -40 cm (d) -60 cm |
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| 6632. |
A ball falls to the ground as shown below:(a) What is the kinetic energy of ball when it hits the ground?(b) What is the potential energy of ball at B?(c) Which law you have made use of in answering this question? |
Answer» A ball falls to the ground as shown below: (a) What is the kinetic energy of ball when it hits the ground? (b) What is the potential energy of ball at B? (c) Which law you have made use of in answering this question? |
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| 6633. |
According to Pascal's Law |
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Answer» According to Pascal's Law |
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| 6634. |
Fig 2.35 shows the velocity-time graph for two cars A and B moving in the same direction.Which car has the greater acceleration ? Give reason to your answer. |
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Answer» Fig 2.35 shows the velocity-time graph for two cars A and B moving in the same direction.Which car has the greater acceleration ? Give reason to your answer.
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| 6635. |
Question 71(iii)The following graph shows the journey made by two cyclists, one from town A to B and the other from town B to A.At what time did the two cyclists meet? |
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Answer» Question 71(iii) The following graph shows the journey made by two cyclists, one from town A to B and the other from town B to A.  At what time did the two cyclists meet? |
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| 6636. |
The kinetic energy of mass 2kg and momentum of 2kg m/s is |
| Answer» The kinetic energy of mass 2kg and momentum of 2kg m/s is | |
| 6637. |
A body weighs 48 N on the surface on earth, its weight at the centre of the earth is |
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Answer» A body weighs 48 N on the surface on earth, its weight at the centre of the earth is |
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| 6638. |
Why DC generator is not capable in changing the direction |
| Answer» Why DC generator is not capable in changing the direction | |
| 6639. |
The force exerted to pull a cart is directly proportional to the acceleration produced in the body. Express the statement as a linear equation of two variables by taking the constant mass equal to 6 kg.Find the force required when the acceleration produced is:(i) 5ms−2(ii) 6ms−2 |
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Answer» The force exerted to pull a cart is directly proportional to the acceleration produced in the body. Express the statement as a linear equation of two variables by taking the constant mass equal to 6 kg.Find the force required when the acceleration produced is: (i) 5ms−2 (ii) 6ms−2 |
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| 6640. |
Question 20An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s.What will be the velocity after 7 s from the start? |
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Answer» Question 20 |
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| 6641. |
You are given a magnet. How will you use it to find north-south direction at a place? |
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Answer» You are given a magnet. How will you use it to find north-south direction at a place? |
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| 6642. |
a body of mass m1 exerts a force on another body of mass m2.If the magnitude of acceleration of m2 is a2 ,then the magnitude of the acceleration of m1is |
| Answer» a body of mass m1 exerts a force on another body of mass m2.If the magnitude of acceleration of m2 is a2 ,then the magnitude of the acceleration of m1is | |
| 6643. |
(i) Name four ways in which sound can be produced.(ii) Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm. |
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Answer» (i) Name four ways in which sound can be produced. (ii) Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm. |
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| 6644. |
at what angle with the vertical should a ball be thrown so the range R is related to time of flight T as R=5T^2 (1)45 (2) 90 (3) 60 (4) 30 |
| Answer» at what angle with the vertical should a ball be thrown so the range R is related to time of flight T as R=5T^2 (1)45 (2) 90 (3) 60 (4) 30 | |
| 6645. |
The given graph shows the displacement of a particle of the medium versus time relation for a disturbance travelling with a velocity of 1500 m/s. Calculate the wavelength of the disturbance. |
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Answer» The given graph shows the displacement of a particle of the medium versus time relation for a disturbance travelling with a velocity of 1500 m/s. Calculate the wavelength of the disturbance. |
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| 6646. |
The resul†an t of two forces actinh at an angleb of 150^{†extdegree } is 10 kgwt and id perpendicular to one of the forces . The magnitude of smaller force is (1) 10\surd3 (2) 20\surd |
| Answer» The resul†an t of two forces actinh at an angleb of 150^{†extdegree } is 10 kgwt and id perpendicular to one of the forces . The magnitude of smaller force is (1) 10\surd3 (2) 20\surd | |
| 6647. |
Dimensions of a block are 1 cm 1 cm 100 cm. If specific resistance of its material is 3 107 ohm-m, then the resistance between its opposite rectangular faces is [MP PET 1993] (a) 3 109 ohm (b) 3 107 ohm (c) 3 105 ohm (d) 3 103 ohm |
| Answer» Dimensions of a block are 1 cm 1 cm 100 cm. If specific resistance of its material is 3 107 ohm-m, then the resistance between its opposite rectangular faces is [MP PET 1993] (a) 3 109 ohm (b) 3 107 ohm (c) 3 105 ohm (d) 3 103 ohm | |
| 6648. |
an alpha particle moving with KE of 100eV has speed V1. it is accelerating by a potential of 10.5V at its speed V2. it is furthur decelerated by 20V. its final speed is V3. find V2-V1/V1-V3. |
| Answer» an alpha particle moving with KE of 100eV has speed V1. it is accelerating by a potential of 10.5V at its speed V2. it is furthur decelerated by 20V. its final speed is V3. find V2-V1/V1-V3. | |
| 6649. |
In a series AC RLC circuit, when the inductor is removed from the circuit, the phase difference between the voltage and the current in the circuit is π/3. If instead, the capacitor is removed from the circuit, the phase difference is again π/3. The power factor of the circuit is - |
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Answer» In a series AC RLC circuit, when the inductor is removed from the circuit, the phase difference between the voltage and the current in the circuit is π/3. If instead, the capacitor is removed from the circuit, the phase difference is again π/3. The power factor of the circuit is - |
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| 6650. |
If a person can see distant objects clearly, but cannot see nearby objects clearly, then the person is said to be affected from which of the following defect/s : |
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Answer» If a person can see distant objects clearly, but cannot see nearby objects clearly, then the person is said to be affected from which of the following defect/s : |
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