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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. |
An object travels 18 m in 6s and then another 20 m in 2 s. What is the average speed of the object? |
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Answer» average SPEED = total distance COVERED /total time taken = 18M + 20m / 6s + 2s = 38 m / 8S = 4.75 m/shope it helps you |
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| 2. |
A body that undergoes simple harmonicmotion is called a harmonic: |
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Answer» The motion of the pendulum is a PARTICULAR kind of repetitive or periodic motion called simple HARMONIC motion, or SHM. The position of the oscillating object varies sinusoidally with time.please Mark it as a brainliest ANSWER and FOLLOW me |
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| 3. |
When speed of light more then refraction index ____ |
| Answer» REFRACTIVE index I didn't KNEW this answer correctlyplease please please please mark me as BRAIN list and even FOLLOW me | |
| 4. |
The attraction property of magnet is concentrated at its |
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Answer» the ATTRACTION PROPERTY of the is CONCENTRATED at its POLE |
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| 5. |
দিনের বেলায় আকাশকে নীল দেখায় কেন ? |
| Answer» TION:ralley law anujai diner Bela Akash nil dekhai sun ER light er moddhe 7 colour present . Environment e vasoman dhulikona sun er light e bichurito hoy.eder moddhe blue colour k amader eye BESI COVER kore.amader eye blue colour er proti besi songbedonsil. | |
| 6. |
In the formula x =at+bt^2+ct^3, x=distance and t=time. find the dimensions of a,b and c |
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Answer» a- meter/secondb-meter/square secc-meter/cubic SEC |
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| 7. |
Explain cartensain sign conservation of spherical mirror |
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Answer» This SIGN convention is known as NewCartesian Sign Convention. 1-> Sign is TAKEN as – (negative) from pole of aspherical mirror towards object along the principal AXIS. This MEANS sign is always taken as – (negative) in front of a spherical mirror. |
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| 8. |
46 Which of the following is a renewable fuel ?a CNG, b solar energy, c nitrogen , d coal |
| Answer» SOLAR ENERGY EXPLANATION: | |
| 9. |
the average velocity of a body is equal to mean of its initial and final velocity then accelaration of the body is |
| Answer» ACCELERATION of the BODY is the rate at which the velocity of a body CHANGES .hope it HELPS you | |
| 10. |
Calculate the effective resistance in the diagram shown infigure. |
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Answer» AB1ohm and 1 ohm are in seriesRs=2 ohmDCand CB1 ohm and 1 ohm in seriesRs= 2 ohmnow,2 ohm and 2 ohm in parallel Rp=2×2/2+2=1 ohmRp=1 OHMI HOPE this helps ( ╹▽╹ ) |
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| 11. |
The descending order of the brightness of the bulb is?give reasons for ur answer |
| Answer» B1 ,B4, B3, B2Hope this HELPS | |
| 12. |
N=3 l=1 ml=3 ms=+1/2 write the rotation of the subshell |
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Answer» clockwiseExplanation:as SPIN Is +1/2I HOPE this HELPS ( ╹▽╹ ) |
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| 13. |
De In thedistancedimensionsformula se = at+bt^2 + ct^3and to time find the dimensions of of a, b and c |
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Answer» PLEASE WRITE YOUR QUESTION PROPERLY AND THEN POST IT THAN WE WILL TRY TO GIVE YOU ANSWER......MAKE MY ANSWER BRILLIANT.......FOLLOW ME..... |
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| 14. |
How to appreciate the reason behind the brilliant of diamonds |
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Answer» is the hardest substance in the nature. The SHINING of the diamonds is DUE to having high refractive index. The AMOUNT of LIGHT reflected depends on the refractive index. HIGHER the refractive index of the substance, more will be the light reflected.Hopes |
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| 15. |
Why is measurement important in kitchen while cooking and baking |
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| 16. |
What is the two characteristics of gravitational force |
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Answer» tion:it is the ATTRACTION FORCE between TWO MASS bodies |
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| 17. |
A car travel a path lenght 1280 km. calculate the distancetravel.in a trip ofand displacement |
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Answer» distance=1280 kmdisplacement=1280 KM |
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| 18. |
2) Pressure as a) Directly proportional to area ofContactb) Directly proportional to mas Bc) Inversely Proportional to area of contactd) Inversely proportional to pare |
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Answer» Pressure is defined as force PER unit area. Pressure is inversely PROPORTIONAL to area, i.e., as area INCREASES pressure increases.P= AF ;P∝ A1 |
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| 19. |
Magnetic south pole and magnetic north pole1) can be separated2) cannot be separated3) repel each other4) All the above |
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| 20. |
Define force. A. Force is defined as an external agent which tries to bring change in state, shape, size anddirection of motion of an object. |
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| 21. |
In a hydraulic lift, how much weight is needed to lift a heavy stone of mass 1000 kg? Given the ratio of the areas of cross section of the two pistons is 5. Is the work output greater than the work input? Explain. |
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Answer» hey mate sorry MUJHE points CHIYE the toh ISS liye ye faltu ANSWER kiya |
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| 22. |
Explain working of tunel diode ad an Oscillator? |
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Answer» Tunnel Diode OSCILLATOR. The oscillator circuit that is built using a tunnel diode is CALLED as a Tunnel diode oscillator. If the IMPURITY concentration of a NORMAL PN junction is highly increased, this Tunnel diode is formed. It is ALSO known as Esaki diode, after its inventor. |
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| 23. |
Find the density of the object with mass 10kg and length 10mand breadth 5m and hight 2m |
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| 24. |
What is the meaning of amere?proper definition. |
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Answer» ━━━━━━━━━━━━━━━━━━━━━┓┗━━━━━━━━━━━━━━━━━━━━━━━━━━━┛ |
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| 25. |
What is heating effect of electric current? |
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Answer» EFFECT OF ELECTRIC CUURENT. When current flows through a CONDUCTOR, heat energy is generated in the conductor. The heating effect of an electric current depends on three factors: The RESISTANCE, R of the conductor |
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| 26. |
What is uniform and nonuniform motion |
| Answer» UNIFORM MOTION occurs when an object travels equal distances in equal time intervals. Uniform motion happens when the object is MOVING with a constant velocity. Non-uniform motion occurs when an object travels different distances in equal time intervals. | |
| 27. |
Plzz answer this question with complete method❤ |
| Answer» TION:PHOTO is unavailable sorry dudeand THANK you for points | |
| 28. |
an object moves from A to B in a circular path of radius 9 metre what is the distance travelled what is the displacement |
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Answer» e=circumference=2πr=18πdisplacement is the SHORTEST distance covered between the initial and final positionas the initial and final position are the same HENCE displacement is zeroI HOPE this HELPS ( ╹▽╹ ) |
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| 29. |
How to pass in science without cheating |
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Answer» you WOULD not learn the CHAPTER plz UNDERSTAND it in one read means not learn it and samjo Explanation:and MARK me as brainlist master |
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| 30. |
ULO 19. A network of resistances is connected to a 16Vbattery with internal resistance of 112 as shown infig.402[1222wI 122to obtain thresistance1) 303) 2 026. If threnumber ofdifferent r1) 427. Thegiven circ42B61216v10The equivalent resistance of the network andthe voltage drops VAB VBC and Vcd are1) 7 ohms, 4Ñ, 2V and 8V2) 2 ohms, 4V, 2V and 8V3) 7 ohms, 2V, 4V and 8V4) 6 ohms, 4V, 2V and 4V1) 2 |
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| 32. |
____ substances cannot be magnetized.1) magnetic 2) non- magnetic3) both 4) none |
| Answer» 2. NON MAGNETIC....... FOLLOW MEH ♥️ | |
| 33. |
4.How many electrons contain 0.5c charge |
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Answer» Explanation:ONE coulomb is the fundamental SI unit of charge. It is defined as the charge in one Ampere of current PASSED for one second. Now for an electron, the AMOUNT of charge it carries is 1.6*10^-19 C. So for making a charge of 1 Coulomb, the number of electrons required will be: Q = n*e Q = 1 C and e = 1.6*10^-19 n = 1/(1.6*10^-19) n = 6.25*10^18 number of electrons |
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| 34. |
Plz help me to find the answer of this question |
| Answer» 15C.................. ..I THINK not SURE | |
| 35. |
A body of mass 3 kg lies on the surface of the table 2 m high. It is moved on the surface by 4 m the change in P.E will be |
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Answer» No change on Potential Energy, i.e. ΔP.E. = 0Explanation:P.E. = mghthus potential energy directly DEPENDS on H. Since in the above QUESTION there is no change in height, the change in P>E> will be zero. |
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| 36. |
An object of size 2.5cm is kept perpendicular to the principal axis of a concave mirror. The distance of the object from the pole of the mirror equal the radius of curvature of the mirror. The size of the image formed |
| Answer» E object is PLACED at the center of CURVATURE the image formed is of the same size as that of the objectI HOPE this HELPS ( ╹▽╹ ) | |
| 37. |
The electrostatic force on a small sphere of |
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Answer» hyyyyyyyyy mate⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️Electrostatic force on the first sphere, F=0.2NCharge on this sphere, q 1 =0.4μC=0.4×10 −6 CCharge on the second sphere, q 2 =−0.8μC=−0.8×10 −6 CElectrostatic force between the spheres is GIVEN by the RELATION,F= 4πε 0 R 2 q 1 q 2 And, 4πε 0and i THINK question is half 1 =9×10 9 Nm 2 C −2 |
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| 38. |
how will you distinguish between a plane mirror ,convex mirror and a concave mirror without touching the middle portion of them |
| Answer» MIRROR- gives you a small and and ERECT imageConcave mirror - gives you an enlarged and an inverted IMAGE.Plane mirror - gives you an erect image of the exactly same size. | |
| 39. |
Q1) MARK THE CORRECT OPTION: 1) If the refractive index of glass with respect to air is 3/2,what is the refractive index of air with respect to glass. a) 1/2 b) 3 c) 1/3 d) 2/3 |
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| 40. |
A round wave of frequency 5000Hz travel in air with speed of 350 ml sec. Calculate the wave length and time period. |
| Answer» MULA is Speed of SOUND in air = FREQUENCY*WAVELENGTH Substituting the VALUES we get Wavelength = 350/5000 =0.07 | |
| 41. |
What is the equivalent resistance between points a and b |
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Answer» 10 ohmExplanation:20+20+20(SERIES)=60 10+10(series)=20 60,20and 30 PARALLEL |
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| 42. |
In total internal reflection when the angle of incidence is equal to critical angle for the pair of media in contact what will be angle of refraction |
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Answer» The ANGLE of REFRACTION will be 90 DEGREE. |
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| 43. |
What do you mean natural motion |
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Answer» ion that an OBJECT does naturally - without bieng FORCED- was CLASSIFIED by ARISTOTLE as a natural motion |
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| 44. |
A motar boat has a speed of 15 km per hour in still water the motar boat goes 30 km downstream at coens back in a total of 4 hours and 30 minutes the speed of the current river is |
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Answer» : The speed of the current of the river is 5km/h Given : The speed of the motor in still water is 15km/h The motor boat GOES 30km downstream and comes back in a TOTAL of 4 hours 30MINS or 4.5 hours Solution : Let us consider the speed of the current of river be x km/h The speed of the bo boat in downstream is (15 +x) km/h and the speed at UPSTREAM is (15 - x)km/hNow The time TAKEN to go upstreamSimilarly , time taken to go downstreamThe speed of the river current is 5km/h |
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| 45. |
Plzz answer me..... An acceleration of 10 towards the 40°c east of North on a scale of 2cm = 1m/s^2....Show the following vectors numerically.... |
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Answer» 10cos40j + 10sin40(-i)if NORTH is TAKEN on Y AXIS and EAST on -X axis |
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| 46. |
Changing milk to curd is a dash change |
| Answer» CHANGE of MILK into CURD is a CHEMICAL change..! | |
| 47. |
Why dead body float on the water while living body sink in the water?why?? |
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Answer» why: The density of the HUMAN BODY is similar to the density of water, and what keeps us floating--other than the DOG PADDLE--is the air in our lungs. A corpse BEGINS to sink as the air in its lungs is replaced by water. |
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| 48. |
A body of mass 5 kg moving with a velocity of 100 ms-¹ is brought to rest by applying a force for 25 seconds.The magnitude of the applied force is |
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Answer» m= 5kgu= 100m/sv=0.t=25sF = maa= v-u/t = 0-100/25 = -4m/s^2Magnitude of force = ma= 5×4 = 20N(MAGNITUDE is always POSITIVE VALUE. So-20 is not correct) |
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| 49. |
FS=1/2mv²-1/2mu²check the correctness |
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Answer» it is ALMOST CORRECT only ONE WRONG in that QUESTION you do it yourself |
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