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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A cyclist covers a distance of 1.5 km in 2.5 minutes.c calculate his speed in km/h |
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Answer» Answer: 1.5÷2.5/60: solve it you will get the answer. |
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| 2. |
SECTION-A1. Is force is a scalar or vector quantity?Who discovered cell & how?What is sublimation?Write one example.Define osmosis & diffusion.Arubber band can change its shape on stretching. Will you classinot? Justify?A body is moving along a circle of radius T. What are the valuesdisplacement in half the revolution?A force of 5N gives a mass my, an acceleration of 8 m/s?, & a maacceleration of 24 m/s . What acceleration would it give if bothtogether?Why can we smell hot food from a distance?Vhy a lysosomes are known as suicide bag?What is the difference between evaporation & boiling?erive graphically v=utat. |
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Answer» the VALUE of its DISPLACEMENT is it's DIAMETER i.e.=2r |
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| 3. |
Give two differences between gravitational and electrostatic force |
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Answer» Electrostatic force or Coulomb’s force is the force acting between two CHARGES. Force between similar natures (same sign) will always be repulsive, while the force between two unlike charges (opposite sign) will always be attractive. Example: The electrons of an atom are bounded to its nucleus because of the electrostatic force of ATTRACTION between the electrons and the positive nucleus
GRAVITATIONAL force:. it is force acting between two massesu.it is always attractive. intersecting fact both forces obey INVERSE square law but gravitational force is very weaker than electrostatic force . |
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| 4. |
Can someone help me for csir net physical science preparation? |
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Answer» . |
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| 5. |
Show how you would connect three resistors of 2 Ω, 3 Ω and 6 Ω resistance so thatthe combination has a resistance of 1 Ω. |
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Answer» We ,know that when we connects RESISTANCE in parallel then the RESULTANT resistance will decrease. So, R=1/2+1/3+1/6 R=(3+2+1)/6=6/6=1ohm |
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| 6. |
Kinetic Energy formula explanation and example proof.m is mass, v is velocity.E=0.5mv^2Gravitational Potential Energy formula explanation and example proof.g is acceleration due to gravitym is massh is height above ground in metres E=mgh |
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Answer» . |
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| 7. |
Derive 1,2,3 equation of motion both mathematical and graphical. |
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Answer» Answer: First three images are of equation of motion GRAPHICAL and LAST two images are of equation of motion mathematical. MARK as brainliest answer. |
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| 8. |
What is ohm's law? Write about ohmic andnohomic conductors. |
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Answer» Explanation: the POTENTIAL difference across the ends of the GIVEN conductor in an electric circuit is directly PROPORTIONAL to the current flowing through it provided the temperature REMAINS the same |
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| 9. |
. Plan a survey in your colony/village to investigate people‟s attitude towards recycling of the domestic/agricultural wastes. Ask questions about : (a) What do they think about resources they use? (b) What is their opinion about the wastes, and its utilization? (c) Collage your results and make a repor |
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Answer» shsksbsjskbss ahsoanwuw aiaownbwiwk jeownwhsisn |
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| 10. |
Why does blood comes out when there is a slight cut on my body |
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Answer» Answer: because BLOOD veins inside our body are cut down .. and their is ALOT of pressure of blood..which CAUSES FLOW of blood from your body when their is slight cut..HOPE you like the answer. |
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| 11. |
Explain with suitable sketches the working of a 4-s si engine. |
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| 12. |
03. Regarding electric lines of force, mark the incorrectoptionsa) with unit charge, the number electric linesassociated isb) electric lines of force end or start normally on thesurface of conductor.c) a positive point charge free to move may followthe lines of force.d) lines of force is defined as the path followed by aunit positive charge in an electric field. |
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Answer» Answer: answer is lines of FORCE is defined as the PATH FOLLOWED by a unit positive charge in an electric field |
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| 13. |
PLEASE ANSWER FAST !!!!A cricket ball of mass 100 g moving at a speed of 30 m/s is brought torest by a player in 0.03 s. find the average force applied by the player. |
Answer» HOPE IT WILL HELP YOU. PLEASE MARK ME AS BRAINLIEST. PLEASE!!! |
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| 14. |
RENTIMAGENEIMETWeight of 5 friends Earth and moon |
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Answer» if the total WEIGHT of 5 FRIENDS are xkg in earth,then the total weight of 5 friends are=x/6 kg |
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| 15. |
on a 60 kilometre straight road a bus travels the first 30 kilometre with a uniform speed of 30 kilometre per hour how fast must the bus travel the next 30 kilometres so as to have average speed of 40 kilometre per our for the entire trip |
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Answer» The bus MUST TRAVEL at a SPEED of 60 km/hr. Explanation: 60 km /40km = 3/2 hr for travelling 30 km bus takes 1 hr hence next 30 km in 1/2 hr. so speed for next 30 km should be 60 km/hr |
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| 17. |
An electric bulb of resistance 480ohm is connected to 230V mains. find the amount of elecrical energy consumsed in 10 minutes |
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Answer» Answer: 18.36watt Explanation: FIRST FIND p=v*v/r then time converted in hour MEANS 10/60 then e=p *t |
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| 18. |
an electric refrigerator rated 1kw operates 5 hours/day.the cost of energy to operate it for 30 days is RS3.00 per unit is |
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Answer» Answer: Rs 450.00 Explanation: Total energy consumption per DAY = 1000J × 5 × 3600=18000 kJ Energy per each UNIT = 1kWh = 1000 × 3600 = 3600 kJ No.of units consumed per day = 18000/3600 = 5 units No.of units consumed for 30 DAYS = 5 × 30 = 150 units therefore, cost of energy per 30 days = 150 units × Rs 3.00 = Rs 450.00 |
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| 19. |
The speed of light is 3*10^8m/s. The same in metres is |
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| 20. |
Create and write an action based story in which eg of force are mentioned |
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Answer» Explanation: In the sport tug of war when the 2 teams pull the rope with equal effort,the rope and the 2 teams remain stationary. What happens when 1 of the TEAM pulled the rope harder..?? This circumstances indicates unbalanced forces. How do u define an unbalanced FORCE...??? Unbalanced forces acting on an OBJECT,changes it's speed or direction of motion it both. If 2 or more forces acting on the same object KEEP the object in equilibrium position or in the same state,then the forces are said to be balanced force. A marble pushed by u starts moving, slows down and finally stops. In this case friction force stops the marble. |
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| 21. |
Advantages of non conventional sources of energy?u |
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Answer» Answer: WIND energy, SOLAR energy, tidal energy,biomass etc. Explanation: since they do not USE sources like coal,charcoal and can be saved for future GENERATIONS, it is more better and advantageous than conventional energy |
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| 22. |
Does flux remain constant in armature voltage control of dc shunt motor |
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Answer» Explanation: The VOLTAGE across both WINDINGS remains the same. Thus we put this value of armature current Ia to GET general voltage equation of a DC shunt motor. Thus the field flux remains more or less constant, and for this reason, a shunt wound DC motor is CALLED a constant flux motor. |
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| 23. |
Does ductile materials have more youngs modulus than brittle |
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Answer» Answer: Since a DUCTILE material can WITHSTAND MUCH more plastic strain than a brittle material, a ductile material will therefore have a HIGHER MODULUS of toughness than a brittle material with the same yield strength. |
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| 24. |
15) Fill in the blanks) The resistance of a cylindrical piece of rubber isthan that of a similar piece of copper |
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| 25. |
Different between 2 types of thermometer |
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Answer» Answer: PLEAZE....MARK IT AS THE BRAINLIEST ANSWER!? ?
PLEAZE....MARK IT AS THE BRAINLIEST ANSWER!? ?
PLEAZE....MARK IT AS THE BRAINLIEST ANSWER!? ?
Types of thermometer
Explanation: PLEAZE....MARK IT AS THE BRAINLIEST ANSWER!? ?
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| 26. |
Two cars a and b race each other the car for 2 minutes at a speed of 7.5 km per hour 56 minutes against time for 2 years at a speed of 7.5 km per hour find the average speed of the car in the race |
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Answer» Answer: 7.5 Explanation: Day and NIGHT, changing phases of the moon, beating of heart, clock STRIKING an hour are all examples of periodic MOTION whereas water becoming ice, burning of matchstick etc are non periodic CHANGES. Changes which are repeated after regular INTERVALS are called periodic changes. |
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| 27. |
Calculas method velocity position relation??? |
Answer» Here is Your ANSWERChack AttechmentHope it Heplfull Answer |
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| 28. |
Difference of 2types of thermometer |
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Answer» The first THERMOMETER is a clinical thermometer and II thermometer is laboratory thermometer... |
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| 29. |
3) Water B.Pis 373K, convert itintoF |
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Answer» Answer: 9/2×c+32 9/2× 100 +32 ( 373-273=100c 9×50 +32 450+32 482f |
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| 30. |
Calculas method Velocity position relation? ?????? |
Answer» Here is Your ANSWERChack AttechmentHope it Heplfull Answer |
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| 31. |
The breaks applied to the car produce an accelerationof 6 mls in the apposite direction to the motion.If the car takes 2 sec to stops after applicationof breake. Calculate the distance it travel during thistime. |
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Answer» vmrjgarukgsufsjcxhgug |
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| 32. |
Derivation of conservation of law of momentum |
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Answer» HENCE LAW of CONSERVATION of MOMENTUM is derieved. MARK ME BRANILIEST |
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| 33. |
The breaks applied to the car produce an acceleration of 6 mls in the apposite direction to the motion.If the car takes 2 sec to stops after applicationof breake . Calculate the distance it travel during thistime. |
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| 34. |
Solid have high density why |
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Answer» Explanation: solid have high density because in solid molecules or ATOMS are very closely packed as COMPARED to liquid and GAS... |
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| 35. |
Difference between resistor inductor and capacitor |
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Answer» Explanation: A resistor represents a given AMOUNT of resistance in a circuit. ... The main difference between a capacitor and inductor is that an inductor is used to store the energy in the FORM of magnetic field, whereas a capacitor STORES the energy in the form of an electric field |
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| 36. |
Explain fourier transform of triangular to sinusoidal |
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Answer» Explanation: A TRIANGLE wave is a non-sinusoidal WAVEFORM named for its triangular shape. ... This infinite Fourier SERIES converges to the triangle wave as N TENDS to INFINITY, as shown in the |
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| 37. |
19. When 2 forces are applied at the same point but in opposite directions the net force is equal to the sumdifference) of forces acting separately. |
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Answer» DIFFERENCE of the FORCES |
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| 38. |
Help me guys !dfferentiate y= x²/2x+1 at x=3clear steps requried ! |
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Answer» answer is in the ATTACHMENT |
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| 39. |
Velocity time relation?????? |
Answer» Here is Your ANSWERChack AttechmentHope it Heplfull Answer |
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| 40. |
37 degree celsius convert it into Fahrenheit |
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Answer» CONVERSION for DEGREE to Fahrenheit f= 98.6°F |
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| 41. |
Pls solve this question |
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Answer» the 2 RESISTOR are in PARALLEL COMBINATION HENCE Rs=R1+R2 5=2+R2 so R2=3 |
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| 42. |
The symbol to represent the unit of thermodynamic temperature is |
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Answer» The 13th CGPM (1967) adopted the NAME kelvin (SYMBOL K) instead of "degree Kelvin" (symbol °K) and defined the UNIT of THERMODYNAMIC temperature as follows: The kelvin, unit of thermodynamic temperature, is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water. |
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| 43. |
Draw the shape of distance time graph for this type of motion |
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Answer» Answer: you Have not mentioned which TYPE of motion you are talking about and QUESTION is ALSO INCOMPLETE..... |
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| 44. |
0 physics definitions light reflection and refraction notes |
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Answer» Answer: Reflection and refraction. LIGHT rays change direction when they reflect off a surface, move from one transparent medium into ANOTHER, or travel through a medium whose composition is CONTINUOUSLY changing. ... The reflected ray is always in the plane DEFINED by the incident ray and the normal to the surface. |
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| 45. |
Q12. Is it possible to have zero Displacement without zero magnitude ofDistance? Explain with suitable example with proper example. |
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Answer» yes it can be possible for EXAMPLE a cyclists completes 1 cycle of circular PATH .means he started and ends at same point (in hindi ghum phir kar vahi aana).in this TYPE of CASES the displacement is zero but the magnitude of displacement is not EQUAL to zero. |
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| 46. |
Characteristic of particle of matter |
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Answer» Answer: All matters have particles Of DIFFERENT characteristic Explanation: SOLID - It has TIGHTLY compressed particles LIQUID - It has compressed particles but not tightly GAS - It has particles moving freely |
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| 48. |
Write the factors which effect the rate of evaporation |
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Answer» HeyMate♥️... ______________ItzCrazyGirl❤️___... 1. Temperature 2. Wind 3. SURFACE area 4. Humidity 5. Density.... |
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| 50. |
All the terms of electricity lesson for class 10 |
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Answer» Answer: Read below: Explanation: .�� Positive and negative charges: The charge acquired by a glass rod when rubbed with silk is called positive charge and the charge acquired by an ebonite rod when rubbed with wool is called negative charge. 2.�� Coulomb: It is the S.I. unit of charge. One coulomb is defined as that amount of charge which repels an equal and similar charge with a force of 9 x 109 N when placed in VACUUM at a distance of 1 meter from it. Charge on an electron = -1.6 x 10-19 coulomb. 3.�� Static and current electricities: Static electricity deals with the electric charges at rest while the current electricity deals with the electric charges in motion. 4.�� Conductor: A substance which allows passage of electric charges through it easily is called a ?conductor�. A conductor offers very low resistance to the flow of current. For example copper,silver, aluminium etc. 5.�� Insulator: A substance that has infinitely high resistance does not allow electric current to flow through it. It is called an ?insulator�. For example rubber, glass, plastic, ebonite etc. 6.�� Electric current: The flow of electric charges across a cross-section of a conductor constitutes an electric current. It is defined as the rate of flow of the electric charge through any section of a conductor.���� Electric currentharge/Time or I = Q/t Electric current is a scalar quantity. 7.�� Ampere: It is the S.I. unit of current. If one coulomb of charge flows through any section of a conductor in one second, then current through it is said to be one ampere. 1 ampere = 1 coulomb/1 second��� or����� 1 A = 1C/1s = 1Cs-1 1 milliampere =� �1 mA = 10-3 A 1 microampere = 1�A = 10-6 A 8.�� Electric circuit: The closed path ALONG which electric current flows is called an ?electric circuit�. 9.�� Conventional current: Conventionally, the direction of motion of positive charges is taken as the direction of current. The direction of conventional current is opposite to that of the negatively charged electrons. 10. Electric field: It is the REGION around a charged BODY within which its influence can be experienced. 11. Electrostatic potential: Electrostatic potential at any point in an electric field is defined as the amount of work done in bringing a unit positive charge from infinity to that point. Its unit is volt. Positive charges move from higher to lower potential regions. Electrons, being negatively charged, move from lower to higher potential regions . 12. Potential difference between two points: The Potential difference between two points in an electric field is the amount of work done in bringing a unit positive charge from one to another. Potential difference = Work done/Charge �or�� V = W/Q 13. One volt potential difference: The Potential difference between two points in an electric field is said to one volt if one joule of work has to be done in bringing a positive charge of one coulomb from one point to another. 1 volt = 1 joule/1 coulomb� or �1 V = 1J/1C 14. Galvanometer: It is device to detect current in an electric circuit. 15. Ammeter: It is device to measure current in a circuit. It is always connected in series in a circuit. 16. Voltmeter: It is a device to measure potential difference. It is always connected in parallel to the component across which the potential difference is to be measured. 17. Ohm�s law: This law states that the current passing through a conductor is DIRECTLY proportional to the potential difference cross its ends, provided the physical conditions like temperature, density etc. remains unchanged. V ? I �or �V = RI 18. Resistance: It is a property of a conductor by virtue of which it opposes the flow of current through it. It is equal to the ratio of the potential difference applied across its ends and the current flowing through it. Resistance = Potential difference/Current or��� R = V/I 19. Ohm: It is the S.I. unit of resistance. A conductor has a resistance of one ohm if a current of one ampere flows through it on applying a potential difference of one volt across its ends. 1 ohm = 1 volt/1 ampere��or� 1? = 1V/1A 21. Resistivity: It is defined as the resistance offered by a cube of a material of side 1 m when current flows perpendicular to its opposite faces. Its S.I. unit is ohm-meter (?m). Resistivity, ? = RA/L 22. Equivalent resistance: If a single resistance can replace the combination of resistances in such a manner that the current in the circuit remains unchanged, then that single resistance is called the equivalent resistance.. |
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