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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 65801. |
If both the magnitude of two charges and distance between them is doubled, then new electrostatic force (if the original force is F) between them will be * (a) F(b) 2F(c) Zero(d) None of these |
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Answer» d) NONE of theseplease help me for MAKING the 2 K (2000) thanks and REGARDS for 300 FOLLOWER ❤️❤️❤️❤️ please guys |
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| 65802. |
The maximum speed of a train is 80 km/h it takes 10 hours to cover a distance of 400 km find the ratio of its maximum speed to average speed |
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Answer» Maximum speed = 80 km/hr Average speed = d i s t a n c e t r a v e l l e d t i m e i n t e r v a l distancetravelledtimeinterval = 400 K m 10 h r 400km10hr = 40 m/hr Ration = m a x i m u m s p e e d a v e r a G e s p e e d = 80 k m / h r 40 k m / h r = 2Read more on Sarthaks.com - https://www.sarthaks.com/946843/maximum-speed-train-takes-cover-distance-find-the-ratio-its-maximum-speed-its-average-speed?show=946854#a946854 |
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| 65803. |
Differentiate the (e x e) with respect to time [e – exponent] |
| Answer» ATION:SINCE there isn't any t component, THEREFORE, differentiation of constant will be 0 | |
| 65804. |
3.A substance of volume 100 cm3 and density 0-85 g/cm float on waren. Oil of density 0.8 g/sms in poured on the surface of waters. just to submerg theSubstance what volume of the body will now beundenr water |
| Answer» ANSER is 109045Explanation:13569345336718999 | |
| 65805. |
Which bank has allotted over 203 crore preferential shares to the government in lieu of Rs 2,600 crore capital infusion for 2020-21? |
| Answer» ANK on Friday SAID it has allotted over 203 crore preferential SHARES to the government it in lieu of rupees 2600 crore CAPITAL infusion for 2020 -21.hope it HLPS uh.. | |
| 65806. |
SUBJECT:-PHYSICS Q1 The coefficient of reflection of a perfectly opaque body is 0.16. Its coefficient of emission is |
| Answer» MAKE me BRAINLIESTS ANSWER | |
| 65807. |
Bus X travels a distance of 30 km in 1 hour whereas bus Y travels a distance of 10 m in 1 sec. Which bus travels faster ? |
| Answer» BUS Y TRAVELS faster then bus X EXPLANATION:by DISTANCE FORMULA (v = s/t) | |
| 65808. |
The velocity of a train increases uniformly from 20 km-h-1 t o60 km-h-1 in 0.2 h the distance travelled by the train during this period is A) 0.2 km B) 0.4 km C) 0.6 km D) 1.2 km |
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Answer» 8 kmExplanation:As per the provided information in the given question, we have :Initial velocity (u) = 20 km/hFinal velocity (v) = 60 km/hTime taken (t) = 0.2 HWE are asked to calculate the distance travelled by the TRAIN during this period.Let us FIND out the acceleration first.➝ v = u + atv denotes FINAL velocityu denotes initial velocitya denotes accelerationt denotes time➝ 60 = 20 + 0.2a➝ 60 – 20 = 0.2a➝ 40 = 0.2a➝ 40 ÷ 0.2 = a➝ 200 km/h² = aNow, by using the third equation of motion,➝ v² – u² = 2asv denotes final velocityu denotes initial velocitya denotes accelerations denotes distance➝ (60)² – (20)² = 2 × 200 × s➝ 3600 – 400 = 400s➝ 3200 = 400s➝ 3200 ÷ 400 = s➝ 8 km = sNone of the options is correct. The distance travelled by the train during this period is 8 km. |
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| 65810. |
If the vectors A, B,C have magnitudes 8,15and 17 and a+b=c find the angle between a and b |
| Answer» 11 68299e9997282hajjss | |
| 65811. |
A car is driven from 0-s if the car travelling initially with 36 km -h-1 is stopped by the driver after observing a signal by deceleration of 5 m-s-2 the total distance travelled by the car before coming to rest is A) 18 m B) 14m C) 12m D) 10m |
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Answer» Provided that: Initial velocity = 36 kmphFinal velocity = 0 mpsAcceleration = -5 mps sq. Don't be confused!→ Final velocity cames as zero because it is given that the DRIVER stopped the car. → Acceleration cames in negative because it is given that the car is retarding or it decelerates. And we also know that deceleration is the inverse of acceleration. To calculate:The distanceSolution: The DISTANCE = 10 m USING concepts: Formula to CONVERT kmph-mps.Third equation of motion.Using formulas: REQUIRED solution: ~ Firstly let us convert initial velocity into metre per second!Final velocity = 0 mpsInitial velocity = 10 mps~ Now let's calculate the distance by using third equation of motion! |
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| 65812. |
Hi stranger can you help me with this question? |
| Answer» YES I can EXPLANATION:but this TIME I can TELL LATER on so | |
| 65813. |
) The focal length of a rear view mirror in a moving car is 1 m. A truck is coming from behind, at a distance of 5 m. Calculate the i) Position and ii) size of the image relative to the size of the truck. |
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Answer» Radius of curvature, R=2mobject DISTANCE, μ=3.5mfocal length, f= 2R = 22 f=1mfrom MIRROR formula,f1 = μ−v 11 = v1 − 3.51 ⇒ v1 =1+ 3.51 v1 = 79 v= 97 m=0.78mMagification, m=− μv =+ 9×3.57 m= 92 =0.22Image will be formed at 0.78m & will be virtual crect and diminished.Image will be 0.22 times the TRUCK. |
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| 65814. |
A bus accelerates uniformly from rest and acquires a speed of 36 km -h-1 in 10 s the acceleration of the bus is a) 10 m-s-2 b) 5 m-s-2 c) 2 m-s-2 d) 1 m-s-2 |
| Answer» CORRECT OPTION isD1 m/s 2 v=u+atv=75 hrkm = 360075×1000 ( SM )u=0,t=20seca= 360075×1000 × 201 =1.04m/s 2 | |
| 65815. |
What is ohms law? explain it |
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Answer» aw states that the current through a conductor is PROPORTIONAL to the VOLTAGE ACROSS the conductor. The constant of PROPORTIONALITY, R is the resistance and the unit is the OHM, with symbol Ω.Hᴏᴘᴇ ɪᴛs ʜᴇʟᴘs ʏᴏᴜ ❤ |
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| 65816. |
A train cover 40km at a uniform speed of 40 km per hour and next 60 km at a uniform speed of 50 km per hour find the total time taken and the overall average speed |
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Answer» refer the attachmentExplanation:A TRAIN COVER 40km at a uniform speed of 40 km per hour and NEXT 60 km at a uniform speed of 50 km per hour find the total time TAKEN and the overall AVERAGE speed |
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| 65817. |
A body starts from rest and has an acceleration 20 cm-s-2 what is the distance covered by the body in first 5 s? A) 160 cm B) 640 cm C) 1280 cm D) 1640 |
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Answer» 640 cmExplanation:CORRECT option B. 640 cmGiven INITIAL velocity , u=0a=20 CM/s² from second EQUATION of motion s=ut +½at²s=0×8 + ½20× 8 = 640 cm |
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| 65818. |
Group the below items into stationary and moving objects: House top, Clock, Minute hand of a clock, flying bird. |
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Answer» tion:STATIONARY objects house top, clockmoving objects MINUTE HAND of CLOCK, flying bird |
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| 65819. |
Change one urge into joule |
| Answer» 1 jougle10000000 ergsEnergy1Joule 1e+7Erghopefully it's HELPFUL DEAR FOLLOWING me PLEASE | |
| 65820. |
The SI unit of a physical quantity “A” is m/s; identify the quantity and state how it is related to distance and time. |
| Answer» TION:hope it's helpful DEAR following me please | |
| 65821. |
P=2.4atm , V=1l, T=298K ,n=? , n is 0.08 but how |
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Answer» 0.09 molesExplanation:pV=nRTn=pV/RTn=2.4x1/0.0821x298n=0.09 MOLES |
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| 65822. |
Write the formula for acceleration When you can say about a thing (1) it moves with constant acceleration. (2) Does it have uneven acceleration? |
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Answer» will HELP uHave a NICE dayPlz MARK me as a BRAINLEIST |
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| 65823. |
Explain 12th Class 1st chapter all formulas |
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Answer» 12th CLASS 1st chapter all the formulas are hereExplanation:HOPE helps to you |
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| 65824. |
All the like vectors are coplanar vectors? |
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Answer» The three given VECTORS are COPLANAR if their scalar triple PRODUCT is zero and if they are linearly dependent. Collinear vectors are ALWAYS linearly dependent. TWO vectors are always coplanar. |
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| 65825. |
4. ਸਾਡੇ ਸਰੀਰ ਵਿੱਚ ਕਿੰਨੇ ਪ੍ਰਤੀਸਤ ਪਾਣੀ ਹੈ ? What is the percentage of water in our body? हमारे शरीर में पानी का प्रतिशत कितना है? * (A) 40 ਪ੍ਰਤੀਸਤ /40 percent /40 प्रतिशत(B) 50 ਪ੍ਰਤੀਸਤ /50 percent/ 50 प्रतिशत(C) 60 ਪ੍ਰਤੀਸਤ / 60 percent/ 60 प्रतिशत(D) 70 ਪ੍ਰਤੀਸਤ/ 70 percent /70 प्रतिश |
| Answer» 70 percentExplanation:70 PERCENT is the ANSWER | |
| 65826. |
1. Which economic activities come under primary sector? |
| Answer» HOPE it will help FUL to youExplanation:MARK me as BRAIN list bro | |
| 65827. |
compute the heat energy produced in a electric circuit of a 5 ohm resistor draws a current of 2A in 0.5 seconds |
| Answer» TION:heat=I^2rt=2^2×5×0.5=4×5×0.5=20×0.5=10j | |
| 65828. |
why telephone communication is not ant an example of transmission of signals through electromagnetic wave |
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Answer» electromagneticExplanation: LIKE me |
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| 65829. |
Sir unit of power And explain it with example |
| Answer» TION:power is DEFINED as the RATE of doing work with respect to TIME | |
| 65830. |
Find the answer physics grade 11 |
| Answer» JAI GURUDEV Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai Gurudev Jai | |
| 65831. |
Write any two languages who does not use alphabet?tell fast plz |
| Answer» CHINESE, japaneseExplanation:this TWO LANGUAGES doesn't USE alpabet | |
| 65832. |
The radius of curvature of a spherical mirror is 30cm, where should an object be placed from the mirror so as to form its image at infinity? |
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Answer» the object should be PLACE 15 CM in front of the mirror to GET the image at INFINITY |
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| 65833. |
What is gravitational force? .........tho hum kon hai aapke |
| Answer» GRAVITY, also called gravitation, in mechanics, the universal force of attraction acting between all matter. ... On Earth all bodies have a weight, or DOWNWARD force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is MEASURED by the acceleration that it GIVES to freely FALLING objects.Explanation:Nikuuu~ | |
| 65834. |
A crystal of BCC structure has atomic radius 2.1Å. Find the volume of its unit cell. |
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Answer» ʀɴɪɴɢ Bʀᴏ…… XD xD |
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| 65835. |
In the given circuit current I and potential difference v across resistor r1and r2is |
| Answer» | |
| 65836. |
Good morning to all ♡give me a correct answer guy's ♡♡♡♡ |
| Answer» 3. (C) and 4. (a)Explanation:3.guass LAW 4.a/2€ | |
| 65837. |
What is stomata? my name is rohan |
| Answer» STOMATA are tiny openings or pores that enable gaseous exchange. Stomata are usually found in plant leaves, but they can ALSO be found in some STEMS. When it does not need carbon DIOXIDE for photosynthesis, the plant closes these poresPlease BRAINLEST me the answer | |
| 65838. |
EXPLAIN MULTIPLE IMAGES BY GIVING AN EXAMPLE.STATE THE NUMBER OF IMAGES FORMED BY CONSTRUCTING THREE DIFFERENT ANGLES BETWEEN MIRRORS. |
| Answer» F \red{What~are~Multiple~IMAGES?}$$ \leadsto $ Images that are generally formed in $ \sf \blue{DAILY~ life}$ are FOUND on bathroom mirrors, formed on televisions, formed on shining pavements, formed on cameras, formed on glasses, kaleidoscope, PERISCOPE and many more.⠀⠀⠀⠀⚔ DarkMellow ⚔ | |
| 65839. |
(ii) The physical quantity whose dimensional formula is the same as that of energy x time/length is? |
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Answer» hiiiiiiiiiiiiiiiiiiiiiiiii |
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| 65840. |
A body moving with change in its position with time as x = (3t2 + 2t + 1 )m. what is the acceleration of the body at t = 5 sec |
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Answer» Given, X=t 2 −4t+6 So, the change in velocity is: dt dx =2t−4 SINCE velocity is changing, At t=0,x 1 =6 At t=2,x 2 =2 So the magnitude of the distance traveled is: 6−2=4m At t=3,x 3 =3 So distance traveled from t=2s to t=3s x 3 −x 2 =3−2=1m THUS the total distance is: 4+1=5mExplanation: |
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| 65841. |
6. Work done to move 1μC of charge from one point to another point on the surface of an equipotential surface like conductor is * |
| Answer» KE SAMNE and I am a bit to be ABLE a good one pic and | |
| 65842. |
two adjacent sides of a parallelogram are represented by the two vector l^+2j^ and 5l^+2j^.what is the area of parallelogram? |
| Answer» BBBB;BBB;bhjhjkxfhxfhh | |
| 65843. |
A can be opened by a lever of 40 cm if the minimum force required is 8 Newton calculate the moment of force to turn the nut |
| Answer» 1) MOMENT of FORCE MEANS torque.τ=force×⊥distanceτ=20×0.5τ=10N−m(2) τ=force×distanceτ=5×10010τ=0.5N−m | |
| 65844. |
If all the ice on the polar caps of the earth melts, due to global warming then the duration of the day will be____ a)24 hours b)more than 24 hours c)less than 24 hours d)12 hours |
| Answer» LESS than TWENTY FOUR HOURS | |
| 65845. |
a normal force of 100 Newton can produce a made pressure of 100000 Pa the area in sq.cm on which the force shall act will be |
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Answer» 100m^2Explanation:As GIVEN that F=100NP=100000Pa=1atmA=?by USING EQUATION ofP=F/Awe GET A=F/PA=100m^2 |
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| 65846. |
What is force? ...........kya mai khel sakta hu |
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Answer» In PHYSICS, a force is any influence that, when unopposed, will change the motion of an object. A force can CAUSE an object with MASS to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector QUANTITY. |
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| 65847. |
Plz answer this question fastlay |
| Answer» NEA tangent of a circle intersects the circle exactly in one single point. 2.)twofrom a point OUTSIDE a circle only two tangents can be drawn to the circle.3.) perpendicular , contactthe tangent at any point of a circle is perpendicular to the radius through the point of contact.4.)TwoThere can be only two parallel tangents to a circle.Q21.)A point P is 25 cm from the centre of a circle. The radius of the circle is 7 cm.Find the length of the tangent drawn from P to the circle ISANS:- 24cmGiven- O is the centre of a circle to which a tangent PT=x has been drawn to the circle at T when OP=25cm. The radius of the given circle=7cmTo find out: x=?Solution- We join OT.∴OT is a radius of the circle through the point of contact T of the tangent PT. We know that the radius through the point of contact of a tangent to a circle is perpendicular to the tangent. ∴OT⊥PT⟹∠OTP=90 o .∴ΔOTP is a right one with OP as HYPOTENUSE. So, applying Pythagoras theorem, we getPT= OP 2 −OT 2 = 25 2 −7 2 cm=24cm.∴ The tangent to the given circle PT=24cm. | |
| 65848. |
a body is released from the top of a tower height 50 m find the velocity with which the body hits the ground is equals to 10 metre per second square |
| Answer» TION:ACCELERATION =VELOCITY /TIME a=10m/s^2d=50m10=50/s^2s^2=50/10=5s=root5v=50/root5=10root5m/s | |
| 65849. |
How errors propogate when the difference of two quanties is observed |
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Answer» D SUBSCRIBED MY YOU TUBE CHANNAL J & J JAY SHRI RAM MARK ME AS BRANELYLIST PLS HELP ME BRO |
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| 65850. |
A snail covers a distance of 100 meters in 50 hours. calculate average speed of snail in km/h |
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Answer» Distance = 100m = 1/10 kmTime = 50 hrSpeed = distance / TIME = 1/50 X 10 = 1/500 km/hrExplanation:HOPE you find it helpful.. JAY Here..❣️ |
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