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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.
| 2601. |
a particle located at x=0 at time t=0 start moving along positive x direction with a velocity v that varies as v=ax, the displacement of the particle varies with time as? |
| Answer» a particle located at x=0 at time t=0 start moving along positive x direction with a velocity v that varies as v=ax, the displacement of the particle varies with time as? | |
| 2602. |
8. Consider the reaction ,2A+B = Products: on doubling the concentration of B alone , the half life did not change.On doubling the concentration of A alone, the rate increased by two times. The unit of rate constant for this reaction? What is the molar solubility of AgBr in 0.1 M Na2S2O3 |
| Answer» 8. Consider the reaction ,2A+B = Products: on doubling the concentration of B alone , the half life did not change.On doubling the concentration of A alone, the rate increased by two times. The unit of rate constant for this reaction? What is the molar solubility of AgBr in 0.1 M Na2S2O3 | |
| 2603. |
A ray of light falls on a plane mirror A kept at an angle 90∘ to another plane mirror B as shown in the figure. The angle N is - |
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Answer» A ray of light falls on a plane mirror A kept at an angle 90∘ to another plane mirror B as shown in the figure. The angle N is - |
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| 2604. |
In a hydropower station, a second reservoir is constructed near the region of water outflow ___ |
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Answer» In a hydropower station, a second reservoir is constructed near the region of water outflow |
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| 2605. |
produce a maximum acceleration 5 m/s2. Its brakes canThe engine of a motorcycleproduce a maximum.canretardation 10 m/s. What is the minimum time in which it can cover a distance of 1.5 km(1) 30 sec(2) 15 sec(3) 10 sec(4)5 sec |
| Answer» produce a maximum acceleration 5 m/s2. Its brakes canThe engine of a motorcycleproduce a maximum.canretardation 10 m/s. What is the minimum time in which it can cover a distance of 1.5 km(1) 30 sec(2) 15 sec(3) 10 sec(4)5 sec | |
| 2606. |
Which of the following(s) is/are properties of light? |
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Answer» Which of the following(s) is/are properties of light? |
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| 2607. |
How to make models based on heat and light |
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Answer» How to make models based on heat and light |
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| 2608. |
What is mica famous for? |
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Answer» What is mica famous for? |
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| 2609. |
Which magnet will you use?(a) Iron is to be separated from trash.(b) You are lost in a forest.(c) A window shutter opens and shuts continuously in the wind. |
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Answer» Which magnet will you use? (a) Iron is to be separated from trash. (b) You are lost in a forest. (c) A window shutter opens and shuts continuously in the wind. |
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| 2610. |
The excess pressure inside an air bubble is |
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Answer» The excess pressure inside an air bubble is |
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| 2611. |
Write the contrapositive of the statement: 'Something is cold implies that it has low temperature'. |
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Answer» Write the contrapositive of the statement: 'Something is cold implies that it has low temperature'. |
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| 2612. |
electric field is directly or inversely proportional to charge? since E=F/q and also E=kq/r*r |
| Answer» electric field is directly or inversely proportional to charge? since E=F/q and also E=kq/r*r | |
| 2613. |
Statement 1: We can use water instead of mercury to construct a barometer for measuring the atmospheric pressure. Statement 2: We do not use water in a barometer because it will be very inconvenient to use. |
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Answer» Statement 1: We can use water instead of mercury to construct a barometer for measuring the atmospheric pressure. Statement 2: We do not use water in a barometer because it will be very inconvenient to use. |
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| 2614. |
The distance covered by a body in unit time in a specified direction is called |
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Answer» The distance covered by a body in unit time in a specified direction is called |
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| 2615. |
Discuss volcano and tsunami in a few words. |
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Answer» Discuss volcano and tsunami in a few words. |
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| 2616. |
Which of the following does the potential energy of an object depend upon? |
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Answer» Which of the following does the potential energy of an object depend upon? |
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| 2617. |
How does a rechargeable battery work?Difference between rechargeable and non-rechargeable battery. |
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Answer» How does a rechargeable battery work? Difference between rechargeable and non-rechargeable battery. |
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| 2618. |
a man moves on horizontal road toward east at speed of 1km/hr and the rain appears to him verticle at speed of 2 km/hrs .the actual speed of rain i |
| Answer» a man moves on horizontal road toward east at speed of 1km/hr and the rain appears to him verticle at speed of 2 km/hrs .the actual speed of rain i | |
| 2619. |
The sun angular diameter is measured to be 1920".the distance of the sun from the earth is 1.49610race to power 11 m. What is diameter of the sun? |
| Answer» The sun angular diameter is measured to be 1920".the distance of the sun from the earth is 1.49610race to power 11 m. What is diameter of the sun? | |
| 2620. |
Question 16 Why do bulbs have two terminals? |
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Answer» Question 16 Why do bulbs have two terminals? |
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| 2621. |
d tA helicopter flies from a city A to B. The line joiningnAand B is along north-south and its length is 100km. The speed of the helicopter is kept 100 km/hand wind blows from west to east with a speed of60 km/h. The time taken by the helicopter is(1) 0.75 h(2) 1.0 h(4) 1.33 h1.25 h |
| Answer» d tA helicopter flies from a city A to B. The line joiningnAand B is along north-south and its length is 100km. The speed of the helicopter is kept 100 km/hand wind blows from west to east with a speed of60 km/h. The time taken by the helicopter is(1) 0.75 h(2) 1.0 h(4) 1.33 h1.25 h | |
| 2622. |
A boy starts from a point O and travels 50m in 30s. He returns back to the same point O in 20s. Calculate the average velocity of the boy. |
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Answer» A boy starts from a point O and travels 50m in 30s. He returns back to the same point O in 20s. Calculate the average velocity of the boy. |
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| 2623. |
How are lightnings formed ? |
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Answer» How are lightnings formed ? |
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| 2624. |
Match the following. Group ‘A’ Group ‘B’ (a) frequency 1. ultrasonic sound (b) period of oscillation 2. metre (c) amplitude 3. second (d) bat 4. hertz 5. audible sound |
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Answer» Match the following.
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| 2625. |
Two different electrolytic cells are connected in series containing aq AgNO3 and aq CuSO4 respectively. The mole ratio of copper to silver deposited at cathode in the two cells will be |
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Answer» Two different electrolytic cells are connected in series containing aq AgNO3 and aq CuSO4 respectively. The mole ratio of copper to silver deposited at cathode in the two cells will be |
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| 2626. |
Question 20 Boojho goes to the football ground to play football. The distance-time graph of his journey from his home to the ground is given below. (a) What does the graph between points B and C indicate about the motion of Boojho? (b) Is the motion between 0 to 4 min uniform or non-uniform? (c) What is his speed between 8 and 12 minutes of his journey? |
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Answer» Question 20 Boojho goes to the football ground to play football. The distance-time graph of his journey from his home to the ground is given below. (a) What does the graph between points B and C indicate about the motion of Boojho? |
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| 2627. |
The relative strengths of gravitational, columb's and nuclear forces of protons are in the ratio (nearly) |
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Answer» The relative strengths of gravitational, columb's and nuclear forces of protons are in the ratio (nearly) |
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| 2628. |
Two plane mirrors r arranged parallel to one another each moving with a speed V towards each other. The linear speed of the Nth image of a point object placed in front of the first mirror is |
| Answer» Two plane mirrors r arranged parallel to one another each moving with a speed V towards each other. The linear speed of the Nth image of a point object placed in front of the first mirror is | |
| 2629. |
Question 4From the given figure, answer the following questions.(i) Write the points whose abscissa is 0.(ii) Write the points whose ordinate is 0.(iii) Write the points whose abscissa is -5. |
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Answer» Question 4 From the given figure, answer the following questions.  (i) Write the points whose abscissa is 0. |
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| 2630. |
A car is running with speed 18 km/h towards a wall and emits note of frequency 272 Hz. If speed of sound in air is 345 m/s,then frequency heard by an observer behind the wall is ? |
| Answer» A car is running with speed 18 km/h towards a wall and emits note of frequency 272 Hz. If speed of sound in air is 345 m/s,then frequency heard by an observer behind the wall is ? | |
| 2631. |
Number of images formed by 2 parallel plane mirror are infinity theoretically so what are the fix number of images in a practicle |
| Answer» Number of images formed by 2 parallel plane mirror are infinity theoretically so what are the fix number of images in a practicle | |
| 2632. |
40. The average kinetic energy of an ideal gas per molecules in S.I. units; at 25C will be- (1) 6.17x10 raise to the power -20 J (2) 7.16x10 raise to the power -20 J (3) 61.7x10 raise to the power -21 J (4) 6.17x10 raise to the power -21 J |
| Answer» 40. The average kinetic energy of an ideal gas per molecules in S.I. units; at 25C will be- (1) 6.17x10 raise to the power -20 J (2) 7.16x10 raise to the power -20 J (3) 61.7x10 raise to the power -21 J (4) 6.17x10 raise to the power -21 J | |
| 2633. |
5. Engine of a vehicle can give it an acceleration of 1m/s2 and its brake can retard it at 3m/s2. The minimum time in which the vehicle can make a journey between stations A and B having a distance of 1200m is? |
| Answer» 5. Engine of a vehicle can give it an acceleration of 1m/s2 and its brake can retard it at 3m/s2. The minimum time in which the vehicle can make a journey between stations A and B having a distance of 1200m is? | |
| 2634. |
how to find freezing point when molarity is given? |
| Answer» how to find freezing point when molarity is given? | |
| 2635. |
What are the advantages of air currents in our atmosphere? |
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Answer» What are the advantages of air currents in our atmosphere? |
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| 2636. |
Write functions of metal detector. |
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Answer» Write functions of metal detector. |
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| 2637. |
We have studied that if person moves to the mirror by speed v the image will move by v.And if mirror moves to the person by speed v the image will move by 2v. But as per relative speed person moves to mirror or mirror moves to person with same speed should make no difference so why this difference of v and 2v |
| Answer» We have studied that if person moves to the mirror by speed v the image will move by v.And if mirror moves to the person by speed v the image will move by 2v. But as per relative speed person moves to mirror or mirror moves to person with same speed should make no difference so why this difference of v and 2v | |
| 2638. |
Why planet do not twinle has stars |
| Answer» Why planet do not twinle has stars | |
| 2639. |
The resis†an ce of a bulb filament is 100ohm at a temperature of 100C, if its temperature coefficient of resis†an ce 0.005 perC. its resis†an ce will become 200 at a temp of? 200=100(1+alpha△ T) why cant we use this formula? |
| Answer» The resis†an ce of a bulb filament is 100ohm at a temperature of 100C, if its temperature coefficient of resis†an ce 0.005 perC. its resis†an ce will become 200 at a temp of? 200=100(1+alpha△ T) why cant we use this formula? | |
| 2640. |
When 6 identical cells of negligible internal resistance are connected in secondary circuit of a potentiometer the balancing length is 1 balancing length becomes 1/3 when some cells are connected wrongly the number of cells connected wrongly are |
| Answer» When 6 identical cells of negligible internal resistance are connected in secondary circuit of a potentiometer the balancing length is 1 balancing length becomes 1/3 when some cells are connected wrongly the number of cells connected wrongly are | |
| 2641. |
An object with mass m moves with cons†an t speed in a circular path of radius R under the action of a force of cons†an t magnitude F. The kinetic energy of object is - (1) 1/2FR, (2) FR, (3) 2FR, (4) 1/4F |
| Answer» An object with mass m moves with cons†an t speed in a circular path of radius R under the action of a force of cons†an t magnitude F. The kinetic energy of object is - (1) 1/2FR, (2) FR, (3) 2FR, (4) 1/4F | |
| 2642. |
A pendulum makes 135 oscillations in a duration of 15 seconds. The time period of the pendulum is . |
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Answer» A pendulum makes 135 oscillations in a duration of 15 seconds. The time period of the pendulum is |
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| 2643. |
WIRE OF LENGTH L AND RADIUS R FIXED AT ONE END AND FORCE APPLIED TO ANOTHER END PRODUCES EXTENSION L. THE EXTINSION PRODUCED IN ANOTHER |
| Answer» WIRE OF LENGTH L AND RADIUS R FIXED AT ONE END AND FORCE APPLIED TO ANOTHER END PRODUCES EXTENSION L. THE EXTINSION PRODUCED IN ANOTHER | |
| 2644. |
The tail of a comet points : |
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Answer» The tail of a comet points : |
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| 2645. |
3. A body is moving with speed (10.00 0.01) m/sThe distance covered in time (5.00 + 0.01) s is |
| Answer» 3. A body is moving with speed (10.00 0.01) m/sThe distance covered in time (5.00 + 0.01) s is | |
| 2646. |
A body is thrown vertically upward from the surface of earth with 10 J of kinetic energy.The potential energy (taking reference level at point of projection) at the highest point of its journey is |
| Answer» A body is thrown vertically upward from the surface of earth with 10 J of kinetic energy.The potential energy (taking reference level at point of projection) at the highest point of its journey is | |
| 2647. |
Any vector in an arbitrary direction can always be replaced by two (or three) |
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Answer» Any vector in an arbitrary direction can always be replaced by two (or three) |
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| 2648. |
Which of the following motion is depicted by the mango that falls down from a tree? |
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Answer» Which of the following motion is depicted by the mango that falls down from a tree? |
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| 2649. |
The mass of an object is 2.2kg . Find its weight (given 1 kg =10N) |
| Answer» The mass of an object is 2.2kg . Find its weight (given 1 kg =10N) | |
| 2650. |
Question 1Why is it difficult to hold a school bag having a strap made of a thin and strong string? |
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Answer» Question 1 |
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