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. |
Difference between frost free and direct cool refrigerator |
| Answer» TION:Direct cool refrigerators are typically much less expensive than the frost free versions. ... Frost free refrigerators, as the name implies, do not require any kind of manual DEFROSTING. A small ELEMENT is placed INSIDE the unit that actually MELTS accumulating ice. | |
| 2. |
Nuclear force are short range force explain |
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Answer» FORCE :A strong attractive force between nucleons in the atomic nucleus that holds the nucleus together.SHORT RANGE FORCE :A force between two particles which is negligible when the distance between the particles is greater than a certain amount; in PARTICULAR, NUCLEAR FORCES whose range is several times 10-15 meter.I HOPE ITS HELP YOU PLEASE MARK ME AS BRAINLIEST |
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| 3. |
When we touch a a paper rod is Cooler then paper sheet give reason |
| Answer» TION:WHEN WE TOUCH A PAPER AND STEEL ROD IN WINTER THEN STEEL ROD IS MORE COLDER THEN PAPER:Because steel rod is GOOD CONDUCTOR of HEAT so rod is more colder then paper.Thank you | |
| 4. |
Torque on a magnetic dipole placed in a magnetic field. |
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Answer» Torque EXPERIENCED by a Magnet in aMagnetic FIELD. So, the magnetic moment of a dipole is numerically equal to the torqueacting on the dipole when it is placedperpendicular to the direction of uniformmagnetic field of UNIT strength. In this reference, the unit of magnetic moment is joule per TESLA,JT−1). |
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| 5. |
Name two antacids used to get rid of our indigestion problem |
| Answer» UM HYDROXIDE [ MILK of MAGNESIA ]RanitidineCimitidinePepto BismolNizatidine | |
| 6. |
What will happen to the accerelation of a body at its highest position if its thrown vertically upwards |
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Answer» it will not be ZERO EXPLANATION:the VELOCITY will be zero at that MOMENT but ACCELERATION will not be zero |
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| 7. |
At what distance from a concave mirror of focal length 10cm should an object is placed if the image is formed at a distance of 20 cm from the mirror |
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Answer» 20cmexplanation , here ,f=10cm v=20cmaccording to Mirror FORMULA , 1/v+1/u=1/fputting this VALUE , we get , 1/20+1/u=1/10 1/u=1/10-1/20 =2-1/20 =1/20 u=20cmif an OBJECT is PLACED at a DISTANCE of 20cm from the mirror then image distance will be 20cm. |
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| 8. |
During an experiment a signal from a spaceship reach to the ground station in five minutes what does the distance of the spaceship from the ground station the signal Travels at the speed of light that is 3¡ 10 to the power 8 one metre per second |
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Answer» Hello FRIEND!!!Your question is to find the distance of this distance of spaceship from the ground when the signal travelling at the speed 3 into 10 to the power 8 reach the ground after 5 minutes.♦1 minute is equal to 60 seconds♦5 minutes is equal to 60×5 seconds = 300 seconds★So the distance = speed × TIME= 300 × 3 ×10 to the power 8=9 × 10 to the power 10 meters★So the distance of the spaceship from the ground is 9 × 10 to the power 10 metersHOPE THAT HELPS.... |
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| 9. |
A train starts from rest with an acceleration of 2m/s*2 a man who was 9m behind the train runs with uniform speed and just manages to get in to the train in 10 sec.the speed of the man is |
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Answer» hhsvgbjsjjsnsejejjejejbbbnd |
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| 10. |
Is angle of incidence always greater than angle of refraction |
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Answer» the ANGLE of REFRACTION and INCIDENT are of same MEASURE |
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| 11. |
A ball 3 cm in diameter and 300 g in weight is attached to the end of a thin string 46 cm long. If it is rotated uniformly in ahorizontal circle at the rate of 15 revolutions/s, what is thetension in the string?plz answer fast mates urgently need it I will mark it as brainliest.. |
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Answer» Mass, m=0.2 kgRadius, r=1 mAngular speed, ω=90 rpm⟹ω= 6090 ⟹ω=1.5 rps⟹ω=3π rad/s(a) Angular velocity, ω=3π rad/s(b) CENTRIPETAL acceleration. a=rw 2 ⟹a=1×3π×3π⟹a=9π 2 m/s 2 (C) Centripetal FORCE, F=ma⟹F=0.2×9π 2 ⟹F=1.8π 2 N(d) Tension in string, = Centripetal Force⟹T=F=1.8π 2 N |
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| 13. |
Please help me with the above question |
| Answer» 2) 45°Explanation:SIN (X)= Opp/hyp Sin x= R/Bx=Sin INVERSE of (B/√2/B)x= Sin inverse of (1/√2)x=45° | |
| 14. |
Define hall coefficient and its importance in physics |
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Answer» Hey mate ✌️✌️Explanation:The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and to an applied magnetic field PERPENDICULAR to the current. It was DISCOVERED by Edwin Hall in 1879.[1] For clarity, the original effect is sometimes called the ordinary Hall effect to distinguish it from other "Hall effects" which have different physical mechanisms.The Hall coefficient is DEFINED as the ratio of the induced electric field to the product of the current density and the applied magnetic field. It is a characteristic of the material from which the conductor is made, SINCE its VALUE depends on the type, number, and properties of the charge carriers that constitute the current. |
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| 15. |
Define relative velocity when it is positive negative and zero |
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Answer» The relative VELOCITY of an OBJECT A with respect to another object B is the velocity that object A would appear to have to an OBSERVER SITUATED on object B moving ALONG with it.hope it helps ............xdExplanation: |
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| 16. |
Check.The dimesnsion.Constitency of.The equation ofescape velocity v =root 2gm/r |
| Answer» TION:LHS=RHSHence PROVED.... | |
| 17. |
The ratio of magnetic field at the centre of current carrying coil of radius a and at distance a frim the centre of the coil and perpendicular to the axis of the coil is |
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Answer» teps solutionsExplanation: Magnetic FIELD at centre is inversely PROPORTIONAL to the radius 'a' and the magnetic field at a DISTANCE is proportional to Where, r = Perpendicular distance from centre Now as r = a solving it GIVES 2√2 |
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| 18. |
If the magnitude of length is halved and that of mass is doubled then dimension of force is |
| Answer» DIMENSION remain the same.Explanation:Dimension of a physical quantity does not depend on the numerical values or magnitude but only depend on the nature of a physical quantity.We does not consider numbers in the Dimension of a physical quantity (except the power which is on the unit i.e. in acceleation where there is a square on second so it is considered) For EXAMPLE in FINDING dimension for kinetic energy = (1/2)mV^2 we does not COUNT the 1/2. | |
| 19. |
Define combination error ? and explainerror of product and division |
| Answer» TION:the REACTION in which TWO or more than two SUBSTANCE is FORMED | |
| 20. |
Simple microscope is used by watch makers? |
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Answer» tion:A WATCH has tiny parts which cannot be seen by our naked eyes. Thus, a simple microscope is used to repair the WATCHES. A simple microscope has magnification of about 20 times obtained by the CONVEX lens of small focal LENGTH, which is HELPFUL in making the repaire |
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| 21. |
What is subimation? |
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Answer» tion is the transition of a substance directly from the solid to the gas PHASE, without PASSING through the intermediate liquid phase. The REVERSE PROCESS of sublimation is deposition or desublimation, in which a substance PASSES directly from a gas to a solid phase. |
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| 22. |
1. The potential energy for a force field F is given byU(x, y) = sin (x + y). The force acting on the par-ticle of mass m at |
| Answer» ANSWER:→F(X,y)=−∇U(x,y) F(x,y)=|∇U(x,y)|; F(0,π4)=1 Explanation:→F(x,y)=−∇U(x,y) ∇U(x,y)=∂U∂xˆx+∂U∂yˆy=cos(x+y)(ˆx+ˆy) F(x,y)=|∇U(x,y)| F(0,π4)=∣∣∇U(0,π4)∣∣=∣∣cos(π4)∣∣|ˆx+ˆy| F(0,π4)=1√2√12+12=1unit | |
| 23. |
Total no. of questipns in allen dlp of pcm jee mains |
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| 24. |
Listen friends say me physics lens formula |
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Answer» 1/v-1/u=1/fHOPE IT HELPS... MARK as BRAINLIEST... |
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| 25. |
If the measured value of two quantities are A+_ |
| Answer» PLEASE WRITE your COMPLETE QUESTION as it is INCOMPLETE | |
| 27. |
Time of instrument is as follows 2.63 sec③ 2.56 sec③ 2.42 sec4. 2.71 sec5. 2.80 secfind it's mean error, Absolute error, MeanAbsolute error , Relative error and percentageerror |
| Answer» HEY MATE here is ur answerExplanation:plz MARK it brainliest | |
| 28. |
06) Define combination error ?and explonerror of product and division |
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Answer» hey mate here is UUR ANSWEREXPLANATION:hope u will understand this PLZ mark it brainliest |
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| 29. |
Moment of inertia of disc of radius R about a diametric axis is 25kg/m². MI of disc about a parallel axis at a distance R/2 from centre is |
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Answer» 50Explanation:MI about diameter = M(R^2)/4 =25 kg/m^2 MI about ll(L) axis=M(R^2)/4 + M(R^2)/2 = 2*M(R^2)/4 = 2*25 = 50 kg/m^2 |
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| 30. |
State two ways to save the energy? |
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Answer» can be SAVED by SWITCHING off all the APPLIANCES after use and using more CNG vehicles or TRAVEL by cycle where U can.Plz follow meThanks plzz |
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| 32. |
Calculate the steady state current in the 2 ohm resistor |
| Answer» ASK UR QUESTION correctly MATE and with proper DETAILS | |
| 33. |
A particle moving with an initial velocity of 5.0 m/s is subjected to a uniform acceleration of -2.5m/s2 find the displacement in the rest |
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Answer» 5mExplanation:GIVEN : U= 5m/sec v= 0 ( as the acceleration is negative) a= -2.5m/sec2 s=?by applying 3RD equation of motion :2as= v2-u2 2×-2.5×s= 0×0-5×5-5s=-25 s=-25/-5s=5m...hope it's CORRECT and helps |
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| 34. |
Derive expression for torsional rigidity of a given cylindrical rod |
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| 35. |
The limiting friction between two surfaces does not depend on a On the nature of 2 surfacesb On the normal reaction c on the weight of the bodyd on the volume of the body |
| Answer» ANSWER: on the NORMAL REACTION. | |
| 36. |
If alpha particle is projected normally the path is |
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| 37. |
Water is not used as thermometric fluid because |
| Answer» EXPLANATION: SORRY I cannot I am sorry MARK the ANSWER | |
| 38. |
How is the sun generating heat and light constantly |
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Answer» the SUN is generating HEAT and light CONSTANTLY because create energy because it is essentially a massive FUSION reaction. ... TECHNICALLY known as nuclear fusion,FOLLOW ME |
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| 39. |
State whether an electrical heater will consume more electricity energy or less electrical energy per second, when the length of its heating element is reduced. give reasons for your answer |
| Answer» ELECTRICAL heater will consume LESS electrical energy . Explanation:Length of Heating element is reduced . So , less AREA will be used CONSUMPTION of heat energy . So, if length of heater's heating element is reduced , then less energy will be consumed . | |
| 40. |
A uniform velocity v. Theiii) An electron with charge e enters a unimagnetic field B with a velocity vvelocity is perpendicular to the magnefield. The force on the charge e is givenbyF = Bev Obtain the dimensions of B. |
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Answer» END HERE YOUR ANSWER HEY FRIEND HERE YOUR ANSWER IN THE PIC HEY FRIEND HERE YOUR ANSWER IN THE PIC I hope its HELP you if my answer is helpful for us so please MARK my answer in BRAINIEST HEY FRIEND HERE YOUR ANSWER IN THE PIC I hope its help you if my answer is helpful for us so please mark my answer in brainiest thank you |
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| 41. |
What is heat ? write its SI unit. |
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Answer» ree of HOTNESS of coldness of a body.......... SI unit is same as that of the TEMPERATURE.. I. e, Kelvin.. #sumedhian❤❤ |
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| 42. |
Date: 1015 Three inductane are annectedas shown in figfind the resultant inductanceL = 0.5440. ISHmom13=0.SH |
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Answer» 6394+_) 993+9393) ((((926629{773 |
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| 43. |
Any irregular body may have more than one centre of gravity |
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Answer» No it is not possible to have more than ONE CENTER of gravity for an IRREGULAR body. If the were possible to have more than one center of gravity for an irregular body then the TERM center of gravity would be used |
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| 44. |
An electric dipole placed in a non-uniform electric field |
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Answer» Torque is NON zero when dipole is PLACED in UNIFORM as well as non uniform electric field but in non-uniform electric field, dipole will experience net force of attraction WHEREAS in uniform magnetic field, it doesn't. |
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| 45. |
A device which is used to boost the signal between two cable segments or wireless access points is |
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Answer» A transformerExplanation:it's the BASIC DEVICE that is USED to boost any SIGNALS or waves |
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| 46. |
Nuclies ,cell,cell theory which is odd |
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Answer» HERE IS YOUR ANSWEREXPLANATION:CELL THEORY IS ODD |
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| 47. |
Which principle the earth resistance tester works |
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Answer» To measure the earth resistance with a MEGGER earth TESTER, the earth electrode under test is connected to its E terminal and P and C TERMINALS are connected to auxiliary electrodes through a CONNECTING lead of negligible resistance |
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| 49. |
An object is thrown in the vertically upward direction with velocity u, then the maximum height attained by the object would be |
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Answer» Hmax= u²/ 2ghere,u is the INITIAL VELOCITY g is the ACCELERATION due to gravityhope it HELPS and PLS mark as brainliest:) |
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| 50. |
Describe what is mean by significantFigures and order of magnitude |
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Answer» tion:The number expressing the magnitude of a measurement should be recorded with only as many as digit as PROPERLY indicate the accuracy of the measurement. An order of magnitude is an exponential CHANGE of plus-or-minus 1 in the value of a QUANTITY or unit. |
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