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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. |
All four equation of motion |
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Answer» Answer: v = U + at s = UT + 1/2 a t^2 V^2 = u^2 + 2AS . . hope it HELP u |
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| 2. |
A body having an initial velocity 'vo' has an accelerated 'a'. using velocuty time graph derive an equation for displacement of the above body |
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Answer» S=Vot+(1/2)at^2 Explanation: |
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| 3. |
An ant moves from point p to q along a circular path of radius 1m. If time is taken as 1 minute,what is the average velocity if the ant |
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| 4. |
22. Obtain (i) v = u + at |
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Answer» YES it is correct hope it HELP MARK as BRAINLIEST |
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| 5. |
3 heater is rated 250 words hundred Border 2 din pahle 200 supply calculate the total current taken from the supplies the resistance of each heater and the energy supplied is lowered her to the three eaters in 5 hours |
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Answer» فھخےفگگجیخخخھفگفگجخجھففگھئجھگ Explanation: ۴۶۸۵۵۴۵ت ۵۷۸۶تررتئی۸۰۰ ۴۵۶۵۵۵۶۷۸ ۲۵۷۹۶۴۴۳۳۳۳۳۵۵۵۷۷۷۷۷۷۵۳۲۳ ۵۶۸۹۰۴۳۲۲۲۴۵۷۵ےئھففتت۶۷ے |
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| 6. |
A concave lens of focal length 15cm away froms an image 10cm from the lens.then object distance is |
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| 7. |
Which of the following is not anadvantage o f friction? a)Walking b)Writing c)Wearing outof shoes d)Gripping an object. |
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Answer» GRIPPING an object Explanation: |
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| 8. |
DEFINE IMAGE??????????????? |
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Answer» a REPRESENTATION of the external FORM of a person or thing in ART. |
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| 9. |
Consider a system of 3 parallel large conducting plates. |
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Answer» |
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| 10. |
Please correct answer friends |
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Answer» PLEASE MARK as BRAINLIEST |
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| 11. |
what will be the total resistance of a circuit of n resistorsof resistance R are connected in parallel |
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Answer» Answer: This implies that the total RESISTANCE in a PARALLEL circuit is equal to the SUM of the inverse of each individual RESISTANCES. Therefore, for every circuit with n NUMBER of resistors connected in parallel, Rn(parallel)=1R1+1R2+1R3… hope helpful..........please mark as brainliest |
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| 12. |
A car of mass 200 kg is moving with an initial velocity of 20 m/s and after t seconds the final velocity of the car becomes 40 m/s. Calculate the change in momentum of the car |
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Answer» Mass = 200kg Initial velocity (u) = 20m/s FINAL velocity (v) = 40m/s To find:- CHANGE in momentum For initial momentum, By applying, P =mu= 200×20 = 4000kgm/s. Foe final momentum, By applying, P =mv= 200×40 = 8000kgm/s. Change in momentum, P2 - P1= 8000-4000 = 4000kgm/s. |
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| 13. |
અનંત લંબાઈના સુરેખ તારથી 10 સેન્ટીમીટર અંતરે ચુંબકીય ક્ષેત્ર .000001 હોય તો તરમાંથી વહેતો પ્રવાહ શોધો |
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Answer» Answer: 135 Explanation: |
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| 14. |
Aakash produces a sound which can be heard by his friend after 4 seconds. Find the distance between Aakash and his friend. (speed of sound = 342m/s) |
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Answer» Distance = speed*time Please MARK it as BRAINLIEST |
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| 15. |
HNOSExample 3.1 (a) Calculate the relativemolecular mass of water (H,O).(b) Calculate the molecular. mass of |
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Answer» ANSWER:............. |
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| 16. |
a driver is able to cut through water in a swimming pool. which property of matter does this observation show? |
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Answer» From the above observation, we could conclude that the diver is able to cut through WATER in the pool because matter is not continous, rather it is made up of particulate in NATURE. Moreover. the interparticular force of attraction is less and not MUCH strong as that of SOLID. The diver could easily pierce through water and displace to occupy it's place. Explanation:-From a long time, Since people knew about matter, there were two kinda views:
Finally after many EXPERIMENTS and observations, we concluded that matter is particulate in nature. How?Let's see an example. Take a sheet of glass and throw it in the floor. (⚠️ Take care, it can be injurious). It breaks into small pieces, so we can say that it is made up of small particles. But a time comes, when the matter is no more divisible. The entire universe is made up of matter or energy. The matter is made up of atom or molecules. ━━━━━━━━━━━━━━━━━━━━━━━━━━ |
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| 17. |
an object of mass 6kg is sliding on horizontal surface ,with a uniform velocity of 8m/s .assuming force of friction offered by the surface to be zero ,the force require to mantain the motion of object with the same uniform velocity is |
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Answer» ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, PLEASE MARK as BRAINLIEST answer |
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| 18. |
The displacement X of a body in motion by x=asin( |
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Answer» Answer: |
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| 19. |
A boy goes to a shop which is 3 km away, buys things and comes back home what is the distance and the displacement in kilometres and metres? Bracket answer is 6 km come at 6000 m displacement is 0) |
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Answer» answer is 1000 6000÷6=1000 |
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| 20. |
Deduce the following equation v2-u2= 2as |
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| 21. |
In which of the following case will the Lateral displacement shown by a glass slab will be more? A ray is incident at 30°or a ray normally incident on the glass slab. |
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Answer» SORRY mate mark as a BRAINILIST |
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| 22. |
one mole of gas having a volume equal to 22.4 litres at 0°C and 1 atmospheric pressure is compressed isothermally So that its volume reduces to 11.2 litres.The work done in this process is |
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Answer» OKAY I will inbox your answer please make brainlists answer and please FOLLOW me |
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| 23. |
What is Coss product |
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Answer» Answer: The cross product a × b is defined as a vector C that is perpendicular (orthogonal) to both a and b, with a direction given by the right-hand RULE and a MAGNITUDE equal to the AREA of the parallelogram that the VECTORS span. ▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃ɧσ℘ε ıt ɧεɭ℘ร шıtɧ гεɢศгɖร ❣ ศг + ŋศv ❣ |
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| 25. |
Give one example for Newton’s first law of Motion.(1 MARK) |
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Answer» Answer: The MOTION of a ball falling down through the atmosphere, or a model rocket being launched up into the atmosphere are both examples of NEWTON's first LAW. Themotion of a kite when the wind changes can ALSO be described by the first law. |
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| 26. |
A geyser of power 2kw is used for heating water of 2 litre in 2min.how much time will be required to heat same amount water but resistance is doubled( voltage is same) |
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Answer» Answer: a GEYSER of power 2kw is used for heating water of 2 LITRE in 2min.how much TIME will be required to heat same AMOUNT water but resistance is doubled ( voltage is same) Explanation: Here is your answery 2kw |
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| 27. |
Explain the relation between work and energy |
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Answer» HI answer is below Explanation: Energy should be transferred to an object in order to MOVE it. ... This amount of energy transferred by the FORCE to move an object is CALLED work or work done. Thus, the relation between Work and Energy is direct. That is, the difference in the Kinetic energy of an object is work done by an object. Hope this helps you |
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| 28. |
@ All chemical changes one of ot polo accompanied by Chemical equationin These reactions are described in sentence for with thehelf of Chemical reactions equation in terms of Symbolsand formula of the substanes involved initally the equationis in skeletal form which is the blanced o that of the totalnumber of the deactant& pecies is the same as thatof the broduct Species. |
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| 29. |
EXERCISES1. A boy while driving to his school covers at the average speed of 15 km/h. Onhis return trip along the same route, covers at the average speed of 25 km/h due toless traffic. What is his average speed for the whole trip?(18.75 km/h)2. A motor boat in Loktak lake startingfrom |
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Answer» Answer: 18.75 Explanation: Below pic show STEPS how to get this answer shortcut eqn only APPLICABLE when DISTANCE is same . . hope it HELP u |
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| 30. |
A car goes 5 km east 3 km south, 2 km west and 1 km north. Find the resultant displacement. |
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Answer» Diagram and SOLITION in the photo Using pythagoras theoram and normal construction If accurate, ROOT 2=1.414 |
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| 31. |
Express the following linear equations in the form of a x + B y + c is equal to zero and indicate the value of A B and c in the each case I) 2 X = -5y ii) 3x +2=0..... |
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| 32. |
Out of two bodies of masses 5 kg and 20 kg, Which one has more inertia?1 mark |
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Answer» Answer: Inertia is DIRECTLY proportional to the MASS of the object. So if the mass of an object is more then it's inertia will be more else less. So from 8KG and 25KG, obviously 25kg is heavier so the inertia of the 25kg object is more.
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| 33. |
a geyser of power 2kw is used for water of 2 litre in 2min.how much time will be required to same water but resistance is doubled |
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Answer» Answer: 1 min Explanation: |
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| 34. |
12. Find the angle of the vector Ā=3i^+6j^ -k^ with y-axis. |
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Answer» 75yx Explanation: because your QUESTION is wrong is but my answer not wrong please check your questio oterwise DELETE it underestand if you understand OK |
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| 35. |
Which color has the most wavelength? |
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Answer» Answer: ▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃Red colour has the most wavelength ツ As the full spectrum of visible LIGHT travels through a prism, the wavelengths SEPARATE into the colors of the rainbow because each COLOR is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers. ▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃ɧσ℘ε ıt ɧεɭ℘ร шıtɧ гεɢศгɖร ❣ ศг + ŋศv ❣ |
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| 36. |
The slope of the line with theta is equal to 120 degree is |
Answer» mark as a brainilist |
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| 37. |
A particle of mass m moves in a circular path of radius r, under the action force which delivers it constant power p and increases it's speed. The angular acceleration of particle at time(t) is proportional(1). 1/√t(2). √t(3). t^0(4). t^3/2Please answer it correctly an briefly. |
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Answer» Here, the only work DONE is in the direction of motion which causes acceleration. POWER, p= Force × Speed in direction of force = Mass × acceleration × speed =m×dvdt×v where, dvdt= LINEAR acceleration. vdvdt=PM[p is constant ] Integrating, 12v2=(pm)×t 12(rω)2=(pm)×t or ω2=2pmr2×t or w=2pmr2×t−−−−−−√ =ct1/2 where, c=con stant Thus, the angular acceleration is dωdt=12ct−1/2 i. e. angular acceleration is proportional to t−1/2 or 1t√. |
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| 39. |
Issertion - Displacement is the shortest distance from one point to another.Reason - Displacement can never be greater than distance travelled.a) Both A and R are true, and R is the correct explanation of Ab) Both A and R are true, but R is not a correct explanation of Ac) A is true but Ris falsed) A is false but R may be true / false |
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Answer» Answer: b Explanation: both statements are true bt 1 ST statment is not the reason of 2 nd . . hope it HELP u |
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| 40. |
11. Two vectors having magnitudes A and root3 A are perpendicular to each other. What is the angle between theirresultant and Ā? |
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Answer» cos90°=0 sin90°=1 therefore tan(alpha) =√3A/A tan(alpha) =√3 alpha=60° |
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| 41. |
Write down thenames of input currentand voltage and outputcurrent and voltageForthe commonCollector configuration |
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Answer» |
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| 42. |
A girl travels 2m due east 8m south 4m due east find distance and magnitude of displacement |
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Answer» Answer: distance 14 DISPLACEMENT 10 Explanation: pls MARK me BRAINLIEST. |
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| 43. |
How to convert radian to meter |
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Answer» Answer: Explanation: Arc length in meter in a meter unit circle = S = RADIUS* THETA= radius * (pi/180 degrees) = pi / 360. You can't. If you know the arc meters of the radian, you can MULTIPLY 2pi to get the circumference. That's literally the closest it GETS with radians to meters |
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| 45. |
A lens have power +2d. Then a object is kept at a distance of 100cm from that lens. Then the magnification is |
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| 46. |
find the magnitude of average acceleration of the tip of minute hand of clock (length =20cm) when it rotate by an angle of π/2 |
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Answer» Answer: bhai/behen JAHA maine arrow DIYA HAI WAHA 10 KA jagah bas 20 laga lena or multiple kar dena |
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| 47. |
Plz answer urgen........ |
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Answer» Answer: 10j hope it HELP MARK as BRAINLIEST |
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| 48. |
Example for this statement |
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Answer» Answer: ANGULAR DISPLACEMENT is a dimensionless PHYSICAL quantity but having unit in SI system.Speed and Velocity are the physical quantities which have the same dimensions.Explanation: hope this HELPS u............ |
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| 49. |
Please please solve this one |
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Answer» Answer: it is DIFFICULT but ALSO EASY .. first TRY to solve then I will have a look on this QUESTION |
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