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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. |
If the Bob of the pendulum takes 1/4seconds to swing between the extreme positions A and C,what is the frequency of the oscillation |
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Answer» Explanation:The square root of 2, or the (1/2)th power of 2, WRITTEN in mathematics as √2 or 21⁄2, is the positive algebraic NUMBER that, when multiplied by itself, equals the number 2. Technically, it is called the principal square root of 2, to distinguish it from the negative number with the same property.Geometrically the square root of 2 is the LENGTH of a diagonal across a square with sides of one unit of length; this FOLLOWS the Pythagorean theorem. It was probably the first number known to be irrational.[citation needed]As a good rational approximation for the square root of two, with a reasonably small denominator, the fraction 99/70 (≈ 1.4142857) is sometimes used.The sequence A002193 in the OEIS consists of the digits in the decimal expansion of the square root of 2, here truncated to 65 decimal places: |
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| 2. |
All green plants are authority's it's this statement true justify your answer |
| Answer» YES this STATEMENT is TRUE | |
| 3. |
Pls ans. fast ...xd bs ye or krdo☺️☺️ |
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Answer» ve asked the 15th question....The answer is not matching the given options.If you FIND any error please report.I have attached my answer in the given attachment :- EVERYTHING is correct but option is not matching !!!kindly CHECK your QUES one more time ... if there's any error in my answer .... feel FREE to report and tell me once. |
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| 4. |
A current of 9A passes by a filament of an electric bulb for 600 sec. Find the amount of electric change through it? |
| Answer» CURRENT =CHARGE /timecharge=9×600=5400 | |
| 5. |
Friction is an opposing force or helping forceplease help me guys it's urgent!!!! |
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Answer» ☬☬Friction is OPPOSING FORCE........ EXPLANATION: |
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| 6. |
Derive the expression for momentum.Apply equation to explain examples. |
| Answer» TION:HOPE it HELPS................EG _ RECOIL of a gunbouncing of ballswalking | |
| 7. |
Write any two merits and demerits of wind mill |
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Answer» Advantages and Disadvantages of WIND EnergyAdvantages and Disadvantages of Wind EnergyClean & Environment FRIENDLY Fuel SOURCE:– It doesn't pollute air like power plant relying on combustion of fossil fuel. ...Advantages and Disadvantages of Wind EnergyClean & Environment friendly Fuel source:– It doesn't pollute air like power plant relying on combustion of fossil fuel. ...Renewable & Sustainable:– Winds are caused by heating of atmosphere by the sun, earth SURFACE irregularities and the rotation of the earth. ...Advantages and Disadvantages of Wind EnergyClean & Environment friendly Fuel source:– It doesn't pollute air like power plant relying on combustion of fossil fuel. ...Renewable & Sustainable:– Winds are caused by heating of atmosphere by the sun, earth surface irregularities and the rotation of the earth. ...Cost Effective:– Wind energy is completely free.#Be Brainly....#Be Brainly.... |
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| 8. |
________ is the largest unit of measurement of length. |
| Answer» KILOMETERS (km)HOPE it HELPS youmark it as brainliest ♥️ ♥️♥️♥️ | |
| 9. |
Slower moving vehicle will have- (A) Higher speed. (B) Slower speed. (C) Equal speed. (D) More distance |
| Answer» OPTION B is CORRECT ANSWER. . . . . . . . . . | |
| 10. |
What are the rules of electromagnetism ? |
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Answer» ᎻᎬY ᎷᎪᎢᎬ ᏌᎡ ᎪNᏚᏔᎬᎡ ᏆᏚ These are for (1) LONG, STRAIGHT wires, (2) free moving charges in magnetic fields, and (3) the solenoid rule – which are loops of CURRENT. Calling these "RULES" is the right NAME. They are not laws of nature, but conventions of humankind. #Be Brainly.... |
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| 12. |
Quartz clocks- (A) Have an electric circuit with one or more cells.(B) Show more accurate time than the clocks available earlier.(C) Have a pendulum.(D) Are more accurate because they have an electric circuit with one or more cells. |
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Answer» w more accurate time than the clocks AVAILABLE earlier.Kindly MARK it as Brainliest if FIND it useful. THANK you! |
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| 14. |
Define force...... ✌️✌️✌️✌️✌️ |
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Answer» s a push or pull which CHANGES or tries to changes the STATE of REST... |
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| 15. |
The atmosphere on the surface of the earth is |
| Answer» LITHOSPHERE is your ANSWER........... | |
| 16. |
Small particles of camphor dance on the surface of water. why? |
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Answer» e this helps you - This due to surface TENSION differential.This decreases the surface tension of water AROUND the camphor particle .So water MOVES from the REGION of high surface tension to the region of low surface tension |
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| 17. |
Answer the question Please.. |
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Answer» The answer is Third OPTION..Explanation:The PHOTO QUALITY is not that GOOD please adjustThank you all! Please support this Answer |
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| 18. |
A car travels 84 km in 2hr, 92 km in 3.5hr. find it's average speed |
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| 19. |
» The resistance of a conductor is 27.02. If it is cut into three equal parts and connected in parallel, then find its total resistance? |
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Answer» The resistance of the conductor = 27.02 ohmIf the conductor is CUT into 3 EQUAL parts, EVERY part will have equal resistance.So, it will have = 27.02÷3 = 9.006 ohm is the resistance of all the three conductors.Now, all the three are connected in parallel connection.1/Rp = 1/R1 + 1/R2 + 1/R3 is the formula to find the net resistance in a parallel connection.Hence, substituting the values.1/Rp = 1/9.006 + 1/9.006 + 1/9.0061/Rp = 3/9.006Rp = 9.006/3Rp = 3.002 ohm is the net resistance.In a series connection, the resistance of the resistors connected in series are ADDED to find the net resistance.That is, Rs = R1 + R2 + R3.In a parallel connection, the reciprocal of resistance of the resistors connected in parallel are added to find the net resistance.That is, 1/Rp = 1/R1 + 1/R2 + 1/R3. |
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| 20. |
Derive an expression of electric field due to conducting sphere at outside and inside the sphere |
| Answer» USING Gauss's law derive an expression for the electric field INTENSITY due to a uniform charged thin SPHERICAL shell at a point. (i) Outside the shell. (ii) Inside the shell. Let, R be the radius of the shell and Q be the charge uniformly distributed on the surface. | |
| 21. |
motorcycle starts from rest and reach a speed metre per second after travelling with a uniform acceleration from 3 minut what is acceleration |
| Answer» MOTORCYCLIST starts from rest and reaches a speed of 6m/s after TRAVELLING ... We know that a = (v-u)/t where a is acceleration, v is the final ... a = 6-0/3 answer is 2 m/s.Explanation:hope it helps U PLEASE MARK me as brainlist | |
| 22. |
Draw a schematic diagram of an electric circuit consisting of a battery of two cells each of 1.5 V,a 5Ω resistor, a 10Ω resistor and a 15 Ω resistor and a plug key all connected in series. |
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| 23. |
What is the rotationa motion with formula and explain |
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Answer» Angular velocity and angular accelerationand is MEASURED in radians/second/second or rad/s 2. A wheel rolling WITHOUT slipping. In this case, the average forward speed of the wheel is v = d/ t = ( rθ)/ t = rω, where r is the DISTANCE from the center ofrotation to the POINT of the calculated velocity. |
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| 24. |
In SI unit Jc-1 is equal to |
| Answer» POTENTIAL differenceExplanation:The answer is potential difference because it is defined as the work DONE by charge as we know that SI unit of work is joule(J) & charge is(C) so the si unit is JC^-1.PLEASE MARK BRAINIEST | |
| 25. |
State Snell's law in details and give it's uses. |
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Answer» law tells us the degree of refraction and relation between the angle of incidence, the angle of refraction and REFRACTIVE INDICES of a given pair of media. We know that light experiences the refraction or BENDING when it travels from one medium to ANOTHER medium. ... It is also known as the law of refraction.Mark as brainliest ANSWER |
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| 27. |
Express 80 km/min in m/s |
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Answer» eters / 60 secondKindly MARK it as BRAINLIEST if FIND it useful. Thank you! |
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| 28. |
What is the rotationa motion with formula |
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Answer» Ꭼ ᏌᎡ ᎪNᏚᏔᎬᎡ ᏆᏚAngular VELOCITY and angular accelerationAngular velocity and angular accelerationand is measured in radians/second/second or rad/s 2. A WHEEL rolling WITHOUT slipping. In this case, the average forward SPEED of the wheel is v = d/ t = ( rθ)/ t = rω, where r is the distance from the CENTER of rotation to the point of the calculated velocity.#Be Brainly....#Be Brainly.... |
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| 29. |
Velocity,force,pressure,temperature,,time.they are fundamental or derived quantity |
| Answer» TION:VELOCITY:DERIVED QUANTITY.force:derived quantity.pressure:derived quantity.temperature:FUNDAMENTAL quatity.time:fundamental quantity. | |
| 30. |
Quess the energy conversion that takes place in hydro power plant and wind mill |
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Answer» te 30TH March and economic and social development and MOBILE DEVICES allowed by the WAY you WANT to be able the administration of justice and peace and quiet and respectful and responsible and We and |
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| 31. |
Light travels from glass (R.I 1.5) to water (R.1 (-33). Sin C of critical angle for glass - water interface will be(1) 0.67(2) 0.77(3) 0.88(4) 0.96 |
| Answer» 7 .HOPE it's HELPFUL to you. | |
| 32. |
INERTIA OF MOTION ...... |
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Answer» it is the TENDENCY of matter to stop from the position ofrest or keep on movingExplanation:HOPE it HELPS |
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| 33. |
Three resistances 2Ω , 3Ω and 5Ω are connected in series, what is their effective resistance . |
| Answer» 10 OM is the ANSWER of this QUESTION | |
| 34. |
A man is standing between source and cliff. When he start moving along line joining him and source, he hears 10 beats per second. Velocity of man is : (Frequency of source = 60 Hz, Velocity of sound = 330 m/s) |
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Answer» y of man = 27.5 m/s EXPLANATION :Given :The hears 10 beats per seconds.Velocity of man is : (FREQUENCY of source = 60 Hz, Velocity of sound = 330 m/s.To Find :The Velocity of man .Solution :We know about Doppler's Effect equation.In which,For determining the frequency : ƒ = observed frequency,c = speed of sound. Vs = velocity of source [ It will be negative if it's moving toward the observer. ] ƒ₀ = emitted frequency of source.So,Consider the :The person is moving TOWARDS - The bluff.The frequency that can be heard directly from the source as - f₂he frequency heard by observer after omitting from the bluff as - f₃ After finding f₂ & f₃ , These two frequencies shall produce beats of 10 Hz.So,f₂ :f₃ :Now :Beats of 10 Hz :Hence,The velocity of man will be 27.5 m/s . |
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| 35. |
Pls ans. fast ...xd |
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Answer» 2.(d) 3.(B) EXPLANATION:l HOPE its HELP you! |
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| 36. |
What are the formulas neede in grade 9 motion lesson |
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Answer» hey matethere is NEED of 3 formulas v=u+atv²=u²+2aswhere s= distance v = final velocity u=initial velocity t=timeand a= acceleration these 3 are the FORMULES of HORIZONTAL motionmay help you DEAR....✌❤ |
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| 37. |
A person with a myopic eye cannot See objects beyond a distance of 1.5m.what would be the power of thecorrective lens used to restore propervision ? |
| Answer» CONCAVE lenshope it may be you PLEASE MARK me as a BRAINLIEST please mark me and FOLLOW me | |
| 38. |
Define inertia of rest.... |
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Answer» The tendency of a body at REST to remain at rest, or of a body in motion to continue moving in a straight line at a constant speed unless a force is applied to it. Mass is a MEASURE of a body's inertia.pls MARK ANSWER as ⚪brainlist⚪ |
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| 39. |
a solid circular cone of radius R is joined to a uniform solid hemisphere of radius R both are made of same material the centre of mass of the ball composite solid lies at the common based find the height of cone |
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Answer» Explanation:The volume of the cone = 1/3 π R (3) h M1 is the Mass of the cone = p x 1/3 π r (2) h M2 is the mass of the HEMISPHERE = p x 1/2 x 4/3 π r (3) = 2/3 π r (3) Now as the Y =( m1 y1 + m2 Y2) / m1 + m2 O = [p x 1/3 π r (2) h x h/4 + p x 2/3 π r (3) (-3r/8) ] / p x 1/3 π r (2) h x h/4 + p x 2/3 π r (3) Or it can be p x 1/3 π r (2) [ h (2) /4 -2R x 3r/8 ] 0R h = √3r |
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| 40. |
The elephant weighs 20,000N stands on one foot of area 1000cm square. How much pressure would it exert on the ground |
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Answer» know , PRESSURE = Force /AREA.Given, area of one foot = 1000 cm² = 0.1 m².Thus, area of FOUR foot = 0.4 m²Hence, pressure = Force/area = 20,000/0.4 = 50,000 PASCAL |
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| 41. |
A train accelerates from 36 km/h to 54 km/h in 10 sec. 1) Acceleration2) Distance travelled by the car [a = 0.5m/s2; s = 125m] |
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Answer» IT IS HELPFUL TO YOU!!PLEASE LIKE my ANSWER ❤️MARK AS BRAINLIEST... |
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| 42. |
Explain Kirchoff’s laws with examples. for 4 mark answer I want please say answer very fast.. |
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Answer» HERE IS YOUR ANSWER Kirchhoff's Current Law Example No2At point A, I1 is equal to IT, thus there will be an I1*R voltage drop across resistor R1. The CIRCUIT has 2 branches, 3 nodes (B, C and D) and 2 independent loops, thus the I*R voltage drops around the TWO loops will be: Loop ABC ⇒ 12 = 4I1 + 6I.Explanation:that is your right answer mark mi as BRAINLIST please and FOLLOW mi |
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| 43. |
एक मित्र दूसरे से कहता है कि ' यदि मुझे एक सौ दे दो , तो मैं आपसे दो गुना धनी बन जाऊँगा । ' दूसरा उत्तर देता है ' यदि आप मुझे दस दे दें , तो मैं आपसे छः गुना धनी बन जाऊँगा । ' बताइए कि उनकी क्रमशः क्या संपत्तियाँ ? ( भास्कर की बीजगणित से ) ( संकेत : x + 100 = 2 (y - 100 ) , y + 10 = 6 ( x - 10 ) l |
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Answer» -एक मित्र दूसरे से कहता है कि ' यदि मुझे एक सौ दे दो , तो मैं आपसे दो गुना धनी बन जाऊँगा । ' दूसरा उत्तर देता है ' यदि आप मुझे दस दे दें , तो मैं आपसे छः गुना धनी बन जाऊँगाTo FIND : -बताइए कि उनकी क्रमशः क्या संपत्तियाँ ?Solution : -माना पहले व्यक्ति का धन = x रु . तथा दूसरे व्यक्ति का धन = y रु . प्रश्नानुसार , पहली स्थिति x + 100 = 2 ( y - 100 ) x + 100 = 2y - 200 x - 2y = - 300 ..............( i )प्रश्नानुसार , दूसरी स्थिति 6 ( x - 10 ) = y + 10 6x - 60 = y + 10 6x - y = 70 ................ . . ( ii ) विलोपन विधि द्वारा समीकरण ( ii ) को 2 ' से गुणा करने पर 12x - 2y = 140 ..............( iii ) समीकरण ( iii ) में से ( 1 ) को घटाने पर 11x = 440 x = 40 इस मान को समीकरण ( ii ) में रखने पर 240 - y = 70 - y = 170 - 240 - y = - 170 y = 170 अतः पहले व्यक्ति के पास धन 40 रु . है तथा दूसरे व्यक्ति के पास धन 170 रूपये है l |
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| 44. |
A boy has a bag of sand of mass 20kg, first of all, he keeps the bag on his head and move 10 metre. Second time, he drags the bag through 10 metre on a frictionless surface. Inwhich case, he does more work. |
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Answer» n dragging it on polished surfaceExplanation: because the angle between the displacement and FORCE is 90 DEGREE THUS cos 90 becomes ZERO and thus work done becomes zero |
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| 45. |
A boy has a bag of sand of mass 20kg. first of all, he keeps the bag on his head and move 10 metre. Second time, he drags the bag through 10 metre on a frictionless surface. Inwhich case, he does more work. |
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Answer» tion:The boy is MOVING making an angle of 90 degrees with the DIRECTON of application of gravitational force(Force of gravity acts in the downward directon)So, total work DONE by man: -F × S cos ¢(THETA)20 × 10 cos 90As cos 90= 0So, F×S cos ¢=0Hence total work done by man is ZERO.Read more on Brainly.in - brainly.in/question/8248871#readmore |
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| 46. |
Calculate the packing fraction of helium? |
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Answer» The RELATIVELY LOW packing fraction of He, C and O implies their exceptional stability, packing fraction is LEAST for Fe (negative) and HIGHEST |
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| 47. |
A car moving with velocity 4okm/hr is brought to rest at a distance if 4om. if the mass of the car is 1500kg, find the force applied on the car |
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Answer» It is assumed, initially the car TRAVELS with speed 50 km/h. ... is 50 km/hr , then we consider that speed is decreased to 40 km/hr after 2 hour, ... force APPLIED to reduce the speed = mass ... |
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| 49. |
Specific heat capacity formula |
| Answer» REQUIRED/(MASS*DELTA TEMPERATURE) | |
| 50. |
When light travels from optically denser medium to optically rarer medium it depends towards the normal |
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Answer» the LIGHT ray when travels from DENVER to rarer it will move AWAY from the normal.Explanation:light travelled in a wave motion and light PARTICLES speed depends on the medium also. so the wave which touches the rarer medium first it will move more speed than in dencer medium. |
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