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. |
consider a car moving along a straight horizontal Road with a speed of 72 km per hour if the coefficient of kinetic friction between the tires and the road is 0.5 the shortest distance in the car can be stopped it if g is equal to 10 M per second |
|
Answer» is 40 m.I HOPE you UNDERSTAND. PLEASE mark as BRAINLIST. |
|
| 2. |
Find temperature in faranheit so it will be its twice its value in celciys |
| Answer» DEGREES CELSIUS willequal 320 degrees FAHRENHEIT. | |
| 3. |
Find out about thomas alva edison invented the electric bulb |
|
Answer» the most FAMOUS and prolific inventors of all time, Thomas ALVA Edison exerted a tremendous influence on modern life, contributing inventions such as the incandescent light bulb, the phonograph, and the motion picture camera, as well as improving the telegraph and TELEPHONE. In his 84 years, he acquired an astounding 1,093 patents. Aside from being an inventor, Edison also managed to become a successful MANUFACTURER and businessman, marketing his inventions to the public. A myriad of business liaisons, partnerships, and corporations filled Edison's life, and legal battles over various patents and corporations were CONTINUOUS. The following is only a brief sketch of an enormously active and complex life full of projects often occurring simultaneously. Several excellent biographies are readily available in local libraries to those who wish to learn more about the particulars of his life and many business ventures. |
|
| 4. |
The cylenderical container of electricity is made up of ________ |
| Answer» MADE up of ZincHope it'll HELP You.........Have a NICE DAY....... | |
| 5. |
The velocity of the light is 3 into 10 to the power 8 metre per second if its wavelength is 500 NM. Determine its frequency. 1 NM =10 to the power minus 9 meter |
| Answer» ANSWER this should WORK | |
| 6. |
Explain working principle of constant pressure of gas turbine with neat layout |
| Answer» IC OPERATION of the gas turbine is a Brayton cycle with air as the working fluid. Fresh atmospheric air flows through the COMPRESSOR that brings it to higher pressure. Energy is then added by spraying fuel into the air and igniting it so the combustion GENERATES a high-temperature flow | |
| 7. |
statement A if an object is lifted from the ground to a certain height work done by the gravitational force is negative statement B if an object is lifted from the ground to a certain height work done by lifting force is positive |
|
Answer» these statements are correct. This is because :-Statement 1 :-WORK is DONE but in opposite direction. Therefore, work done becomes negative.Statement 2 :-Work is done in direction of displacement PRODUCED. So, work done is positive. |
|
| 8. |
State tight hand rule for magnetic field due to a current carrying wire |
|
Answer» eming's Right hand rule in which we can find the magnetic field....SUPPOSE you are point your first three fingers that is the THUMB,index finger and the MIDDLE finger all in different directions making 90 degree angle(straight) then the thumb will be for force applied,index finger will be for magnetic field and the middle finger will represent the direction of current. The easy WAY to LEARN it is Take the thumb,index finger and middle finger as Father,Mother, and children then the First finger(thumb) will represent Force, 2nd finger(index finger) as Magnetic field, 3rd finger(middle finger) will represent the direction of current... |
|
| 9. |
Explain briefly the two reasons for an excessive flow in an electric bulb |
|
Answer» number one reason for excessive current: your meter is broken.The very FIRST thing you should do is make sure the instruments are actually working correctly.You might also ask if the design is actually thought to WORK. Is it just this unit or all of them?Is the supply voltage correct? Are other inputs within spec?If all the above is true, then you can START to troubleshoot. Is the wiring correct? Can you narrow down the excess current by comparing VOLTAGES to a working unit?Are the components the correct ones? Are they installed BACKWARDS? Are there visible issues with the circuit board?If you have a working unit, unplug both of them and compare resistances between them.Eventually you will find a wiring problem, or a component problem, or an adjustment problem.If there is software involved, swap the ROM from a working unit. |
|
| 10. |
Hari is jogging uniformly along a square path of side 100m. He makes 3 rounds along this square path in 4 minutes, his speed is ? |
|
Answer» o, lets assume Hari was getting fat and being self conscious he started running early in the morning. He decided to run uniformly ALONG a square path of side 100m. A.T.Q.Hari ran 3 ROUNDS AROUND this park.So, the distance travelled =3×100= 300 mNow, he ran those 300 metres in a span of 4 minutes, i.e., 4×60= 240seconds.since, we KNOW,Speed (s) = Distance (d) ÷ Time (t)In this CASE,Distance = 300mTime = 240 sso, Speed of Hari= (300÷240)= 1.25 m/sso, the speed of Hari is 1.25 m/s |
|
| 11. |
Observation table for glass slab experiment |
|
Answer» ion through a RECTANGULAR Glass Slab ... the values of ∠i, ∠ r and ∠e in the observation table. Repeat the EXPERIMENT for two more angles of incidence PLEASE MARK it as brainliest |
|
| 12. |
Energy released by the source is equal to sum of energy stored by capacitor and energy dissipated by resistor |
|
Answer» Stored on a Capacitor. The energy stored on a capacitorcan be calculated from THEEQUIVALENT EXPRESSIONS: ... For a FINITE RESISTANCE, one can show that half of the energy supplied by the battery for the charging of the capacitor is DISSIPATED as heat in the resistor, regardless of the size of the resistor. |
|
| 13. |
Electromagnetic waves travel across space at the speed of light, which is about 300 million meters per second (3.0 x 108 m/s).Electromagnetic waves vary in |
| Answer» ES about 1LAKH KILOMETERS PER SECOND | |
| 14. |
Electromagnet cannot be used to separate plastic bags from garbage heap as an electromagnet is able to attract iron metal and others like cobalt,it is unable to attract plastic. |
|
Answer» . Electromagnets can only attract magnetic materials. Plastic bag is a non-magnetic material and will not be ATTRACTED by an electromagnet. Hence, an electromagnet cannot be USED for SEPARATING plastic bags from a GARBAGE heap. |
|
| 15. |
Electromagnetic wave is represented by .Find speed, frequency and direction of the wave |
|
Answer» the representation of electromagnetic wave. while its Electric field and magnetic field vector are represented in sin wave function like thisE=E0 sinwtB=B0 sinwt EM waves travel with the speed of light.Their DIRECTION of propagation is PERPENDICULAR to directions of both electric field and magnetic field. FREQUENCY can be EASILY calculated from the angular velocity. |
|
| 16. |
a bag of wheat weighs 100kg to what height should it be required to be raised that its potential energy is 4900kg (g=9.8) |
|
Answer» ne=POTENTIAL ENERGY=mgh4900= 100 ×10^3× 9.8×hh=0.005mNote: work is done stored in the form potential energy |
|
| 17. |
Explain the physics of angular momentum in quantum mechanics |
|
Answer» momentum is angular momentum. The only THING particular about QUANTUM PHYSICS is that angular momentum is defined as matter (which is formed of particles) spinning around an imaginary axis, so you can't have angular momentum for particles alone, because there's no matter there other than the PARTICLE itself. Some say that spin is the analogue of angular momentum in quantum MECHANICS. |
|
| 18. |
Playerunknowns battlegrounds keeps loading even when jumped out of the plane |
| Answer» | |
| 19. |
Does a moving charge produce a uniform magnet magnetic field |
| Answer» | |
| 20. |
Describe the working of a simple pendulum |
| Answer» PLE PENDULUM works by the THREAD and ball the PRESSURE both side and thread spread the pressure | |
| 21. |
to determine the equivalent resistance of two resistors when connected in series I want to circuit diagram |
|
Answer» diagram R1 and R2 are the TWO resistors connected in series. Volt meters V1 and V2 MEASURE potential difference across R1 and R2 RESPECTIVELY. Current I flows through the circuit. |
|
| 23. |
Why accelerations is inversely proportional to the mass |
| Answer» TION increase and MASS DECREASE with respect to the FORCE at which that mass has been experiencing | |
| 24. |
Please solve kr do please |
|
Answer» ce on Q is ZERO , it means Q and q are in opposite NATURE .LET Q is positive nature and q is NEGATIVE nature Then, force between Q and Q will be repulsion, And force between Q and q will be ATTRACTION, Now, net force act on Q =net force act by q - net force act by Q on Q = 0net force act by q on Q = net force act by Q on Q |
|
| 25. |
Ncert 6class science material separation of substances |
|
Answer» swers is the process by which the UNWANTED COMPONENTS of a mixture are REMOVED to GET a DESIRABLE substance is called separation of substance |
|
| 26. |
Copper wires are usually covered with rubber or plastics to prevent shocks and ensure safety.Because plastics and rubbers are insulators of electricity i.E. They cannot conduct electricity. |
|
Answer» astic and RUBBER have HIGH RESISTANCE |
|
| 27. |
How find workdone of centre of squ are |
| Answer» ILL not be any work done because there is no CHANGE in POSITION of that Particle. It depemds on centre of mass. As per your QUESTION. Answer is ZERO:-) | |
| 28. |
Activity to show that force is exerted on current carrying conductor placed in strong magnetic field |
|
Answer» nt carrying conductor placed in a magnetic field experiences a FORCE. If the DIRECTION of the field and that ofcurrent are mutually PERPENDICULAR to each other, then the force ACTING on theconductor will be perpendicular to both and that can be determined using the Fleming's left-hand rule. |
|
| 29. |
What do you mean by denser medium? |
| Answer» ERS of air CLOSE to the surface of the EARTH is known as DENSER MEDIUM | |
| 30. |
On what condition the single-phase transformer supplying a leading power factor load. |
| Answer» RO I don't KNOW this ANSWERS | |
| 31. |
Describe an experiment to determine the boiling point of a liquid. |
|
Answer» S TYPE OF QUESTIONS VISIT OR SEARCH FOR amritaolabs.inIN THIS YOU CAN FIND VIDEOS AND NOTES.I HAVE THE ANSWER FOR YOUJUST DOWNLOAD THE GIVEN PDF. |
|
| 32. |
The speeds of three molecule are 3v , 4v and 5v find their root mean square speed |
|
Answer» t mean square SPEED (rms speed) is defined as the square root of the mean of squares of the individual speed of the molecules. Mathematically expressed as,VRMS=c21+c22+c23+...c2nn−−−−−−−−−√Vrms=c12+c22+c32+...cn2nwhere cici is the speed of individual molecules and nn is the number of molecules.Now, coming to the question:Vrms=(3V)2+(4V)2+(5V)23−−−−−−−−−−−−√=52√3V |
|
| 33. |
A voltage of 2 v isapplied across the length of 1 cm long si bar doped with |
| Answer» DE be HA be he be me my my my | |
| 34. |
Calculate the height from the earth surface at which the value of g is 1% than that of the earth surface |
|
Answer» ggggggggggggggggggggggggggggggg |
|
| 35. |
How to differ b/w magnetic field due to straight current carring wire and mag feild due to circular coil at center I want the difference b/w their derivation |
| Answer» FIELD in circular COILS REPRESNT CONCENTRIC circles and form STARIGHT line in centremagnetic field in straight conductor is represented by concentric circle withoit any straight line | |
| 36. |
What is the purpose of magnification in light |
|
Answer» nification of a LIGHT microscope is formed using a MIXTURE of the powers of the eyepiece and theobjective lens. The eyepiece produces a power of 10x and the OBJECTIVE lens can produce various different powers, so if it were to produce a power of 100x, the final magnification would be 1000X (10 x 100) |
|
| 37. |
Explain the term loudness? How does it vary with frequency? |
|
Answer» s is the MEASURES of sound energy REACHING the ear PER SECOND. It vary with frequency because f=1/ t |
|
| 38. |
Difference between plane polarized light and linearly polarized light |
|
Answer» polarised and UNPOLARISED is the same. LIGHT is considered to be linearly polarised when the WAVES fluctuate in one specific plane.Plane polarised light can be produced by REFLECTION, refraction and SCATTERING. |
|
| 39. |
Calculate the charge passing through an electric bulb in 20 minutes the value of the current is 20ma |
| Answer» CHARGE be Qtime =20MIN = 20×60sec=1200secCurrent = 20mA=20×10^-3 | |
| 40. |
Bullet mass 200 gram . If kientic energy is 100 joules find velocity |
|
Answer» 0gm=200/1000kgK.E=1/2MV^2100=1/2X200/1000XV^2100X2X1000/200=V^21000=V^2100=V |
|
| 41. |
Find the current flowing through the flowing electric cirict |
| Answer» | |
| 42. |
A potential difference of 10 v is needed to make a current of o,.02 A flow through a wire. What potential difference is needed to make a current of 250 mA flow through the same wire? |
| Answer» E have a look at the ANSWER . We just need to remember ohm's law and how to USE it in NUMERICALS. | |
| 43. |
N. When light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands |
|
Answer» the WAVE nature of light when light PASSES sharp edges or goes through narrow slits, at some places the light WAVES UNDERGOES successive superposition and at some places these waves PRODUCTS distructive superposition. The places of successive superposition appears to be bright fringes and the places of distructive superposition appears to be dark fringes. |
|
| 44. |
Prepare a chart for applications of all inert gases |
| Answer» HELPS ...thank6 | |
| 45. |
An object is placed on the axis of a concave mirror at a distnace 30 cm |
| Answer» | |
| 46. |
A train moving at an average speed 40 km per hour reaches its destination on time if speed reduces 87.5% then reaches its destination 15 minutes late the distance travelled by train is dash |
| Answer» | |
| 47. |
A train 600m long,travelling at 60km/h passes a bridge in 90 sec.What is length of the bridge? |
| Answer» | |
| 48. |
Why isithermal line is curve |
|
Answer» thermal and AdiabaticCurves. The curve showing the RELATION between pressure and volume of a given mass of gas when the flow of HEAT into or out of the gas is STOPPED is called its adiabatic curve. ... 8.4), then the adiabatic curve WOULD be steeper than the isothermal curve. |
|
| 49. |
All formula of Class 9 chapter sound( physics) Plz |
|
Answer» y = Wavelenght × FrequencyVelocity = Frequency × WavelenghVelocity = (1/Time) × WAVELENGH For Echo: 2 × Distance / Time = SPEED of SOUND |
|
| 50. |
Angular intensity variation in young's double slit experiment |
|
Answer» e you will understand the answer!Intensity pattern is sketched in N the FIGURE given above. Intensity at a point whose angular location θ at the center of SLITS is given by. and φ SHOWN in the graph is given by. λ is the wavelength of the light. |
|