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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. |
The number of significant figures in 0.06, 2.005 and 4.0 104 respectively areХ1,4,61,4, 22, 4, 2 |
| Answer» ANSWER is B OPTION EXPLANATION:answer is MENTIONED above | |
| 2. |
Equal volumes of iron and wood have ...................... masses |
| Answer» TION:Equal volumes of iron and wood have ...different.. masses.hope this helps you!mark this ANSWER as the brainliest! | |
| 3. |
Magnesium wire is burnt in air is _______________type of reaction |
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Answer» It is synthesis EXPLANATION:Magnesium WIRE is BURNT and magnesium oxide is formedPls mark as BRAINLIEST |
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| 4. |
derive equations of motion graphically for a particle having uniform acceleration, moving along a straight line |
| Answer» CLE starts to MOVE from A with velocity U and a constant ACCELERATION acting on particle is a. after time t, particle reach the point B where velocity of particle is V. | |
| 5. |
Define orbital velocity of satellite. derive the experience of orbital velocity of satellite |
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Answer» Vo = orbital velocity)Answer:Orbital velocity is the velocity given to ARTIFICIAL satellite so that it MAY start REVOLVING around the earth. Expression for orbital velocity: Suppose a satellite of mass m is revolving around the earth in a circular orbit of radius r, at a height h from the SURFACE of the earth.The expression for orbital velocity is √g( R+h) = √gr. |
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| 6. |
The resultant of addition of two vectors will be the same as that of their subtraction the angle will be 456090120 |
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Answer» The resultant of ADDITION of TWO VECTORS will be the same as that their SUBTRACTION the angle will be 120 |
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| 7. |
COR uu. A hockey ball of mass 200 g hits on a hockey stick with a velocity10 m/s. Calculate the change in momentum if the ball bounces back onthe same path with the same speed.m/s. Its |
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Answer» tion:Givenmass of the BALL =200g=0.2kgu= initial velocity of the ball before collision with the stick=10m/sv=final velocity of the ball after collision with the stick= -10m/s(because after HITTING the stick the ball reboundced back with same speed but opposite in direction)∆P=P2-P1 =mv2-mv1 =m(v2-v1) =0.2(-10-10) =0.2(-20) =-4kg/ms^-1 NEGATIVE sign just represents the opposite direction of the ball RELATIVE to motion of the ball before the collision |
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| 8. |
name the space mission by nasa in which first women and the next men will goo to the moon in year2024 (hint. named after a greek godess) |
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Answer» ArtemisExplanation:NASA is committed to landing American astronauts, including the first woman and the next man, on the Moon by 2024. Through the agency’s Artemis LUNAR exploration program, we will use innovative new technologies and systems to explore more of the Moon than EVER before. We will collaborate with our COMMERCIAL and international partners to establish sustainable missions by 2028. And then we will use what we learn on and around the Moon to take the next giant leap – sending astronauts to Mars. |
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| 9. |
Refractive index unit |
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Answer» Hope its Helpful to YOUPLEASE friend me mark as BRAINLIEST Answer PLZIT's a HUMBLE REQUEST to you |
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| 12. |
Check the correctness of an equation,x=ut+1/2at^2 where,x is displacement.u is initial velocity a is acceleration and t is time |
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| 13. |
Test charge is always postive why? |
| Answer» DUE to ConventionExplanation:It is taken as POSITIVE because of convention.There is no problem in taking negative test CHARGE but positive test charge is conventionally considered so we do so | |
| 14. |
10 uses of electromagnet |
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Answer» Generators, MOTORS, and transformersElectric BUZZERS and bellsHeadphones and loudspeakersRelays and valvesData storage devices like VCRS, tape recorders, hard discs, etc.Induction cookerMagnetic locksMRI machinesParticle acceleratorsMass SPECTROMETERS |
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| 15. |
True or false Product of force and perpendicular distance is moment. |
| Answer» TRUEEXPLANATION: | |
| 16. |
गतिक स्पिति रिवर र गिलाण ताकि किसी परिवानि O'ताप पर एकचालत ग Passyजिरावणला परिशिताxोग9 भोग में लाया चालता का प्रतिरोध पुर्णाला लियासाप मारा गीजिए जिस |
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| 17. |
In which case of the following circuits will the bulb glow the brightest. Explain why? Case 1) A simple circuit with one bulb and one cell. Case 2) A simple circuit with one bulb and 2 cells. |
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Answer» 2 caseExplanation:since POTENTIAL difference in SECOND CIRCUIT is higher |
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| 19. |
Who calculated the value of gravitational constant |
| Answer» LORD Henry CavendishI hope it's HELPFUL. Please FOLLOW me if it is helpful and ALSO mark as brainlist ❤️❤️ | |
| 21. |
Please give me your answer and follow me ♥ ♥ |
| Answer» FIRST FOLLOW meExplanation:MARK me as BRAINLIST | |
| 22. |
What is vegetative propagation |
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Answer» ive PROPAGATION: A form of ASEXUAL reproduction in PLANTS, in which MULTICELLULAR structures BECOME detached from the parent plant and develop into new individuals that are genetically identical to the parent plant. |
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| 23. |
the relative refractive index of water with respect to air is 4 by 3. the relative refractive index of air with respect to water is |
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Answer» Refractive index of water w.r.t AIR = N 1 n 2 = 34 and refractive index of air w.r.t water = n 2 n 1 = 43 =0.75 |
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| 24. |
derive the equation of motion राइट द इक्वेशन ऑफ मोशन बी स्क्वायर इक्वल टू ए स्क्वायर प्लस टू ए फ्रॉम लैपटॉप |
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Answer» I WILL TRYExplanation: |
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| 25. |
Write joule's law of heating |
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Answer» Answer: Joule's LAW of heating states that , "The HEAT PRODUCED in a resistor is directly proportional to (1) square of current (I^2) (2) resistance of the resistor (R) and (3) time for which the current flows through the resistor . |
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| 26. |
द डेंसिटी ऑफ मरकरी स्तर 3 पॉइंट 6 ग्राम क्यूबिक मीटर जीरो डिग्री सेल्सियस एंड कॉएफिशिएंट आफ क्यूबिकल एक्सपेंशन इज 1.82 इनटू 10 रैसे टो माइनस फोटो calculate the density of mercury at 50°c |
| Answer» SORRY I didn't UNDERSTAND the QUESTION | |
| 27. |
A bicycle initially moving with a velocity 5m/s accelerates for 5s at a rate of 2m/s².What will be its finally velocity? |
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Answer» :- → U = 5 m/s→ a = 2m/s²→ t = 5sFirst EQUATION of motion→ v = u + at→ v = 5 + 2 × 5→ v = 5 + 10→ v = 15m/sMark BRAINLIEST |
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| 28. |
Direction for questions 13 to 15 The image of a very distant object is clearlyobtained when a screen is placed at 5 cm infront of a concave mirror.The focal length of the mirror is |
| Answer» TION:.......................... ............ | |
| 29. |
Explain working of cyclotron |
| Answer» TRON accelerates a charged particle BEAM using a high frequency alternating voltage which is applied between two hollow “D”-shaped SHEET metal electrodes known as the “dees” inside a vacuum chamber. ... The voltage creates an oscillating ELECTRIC field in the GAP between the dees that accelerates the particles. | |
| 30. |
Coulombs law is Same as Newtons law . How ? |
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Answer» In Coulomb's Law the electrostatic FORCE may be POSITIVE or negative. In Newton's Law of Gravitation the force is always negative. ... Opposite charges will RETURN a negative force (attractive); like charges will return a positive force (REPULSIVE). |
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| 31. |
Generally, when a liquid is heated, it expands and becomes.......................... |
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Answer» vapour.Explanation: |
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| 32. |
A car is making a turn at speed v. The radius of the turn is r and the centripetal force on the car is F. If thecar rounds the same curve at speed 2v, the requiredcentripetal force is |
| Answer» C is the CORRECT ANSWER | |
| 33. |
A train passes an observer standing on a platform. The first carriage of the train passes the observer in time t1=1 s & the second carriage in t2=1.5 s. Find its acceleration assuming it to be constant. The length of each carriage is ( = 12 m.) (A) 3.3 m/s?(B) -3.2m/s?(C) 24m/s?(D) -24m/s |
| Answer» | |
| 34. |
How can i improve my posture in general a. Be mindful of your postureb. stay activec. eat junk food as much you cand. wear comfortable low heeled shoes |
| Answer» B is the CORRECT ANSWEREXPLANATION:STAY ACTIVE.......,.............. | |
| 35. |
Check the correctness of an equation:v=u+at . where,v initial velocity.u ii initial velocity,a is acceleration and t is time |
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Answer» Here the EQUATION is CORRECT but the V is not initial VELOCITY it's final velocity |
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| 36. |
13.A car of mass 1000 kg is moving with a velocity of 10 m/s. If the velocity-time grap for this car is a horizontal line parallel to the time axis, then the velocity of the car at theend of 25 s will be:(a) 40 m/s(b) 25 m/s(c) 10 m/s(d) 250 m/s |
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Answer» velocity of the CAR will be 10 m/sIt has given that a car of mass , m = 1000 kg MOVING with a velocity, v = 10 m/s. velocity - time graph for this car is a HORIZONTAL line parallel to the time axis. ... i.e., 10 m/s Explanation:hope U like |
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| 37. |
If 'u' is the object distance, 'V' is the image distance from a spherical mirror, 'hi' is theobject height and 'h2' is the image height,then magnification 'm' is equal to |
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Answer» m=h1/h2= -v/uExplanation:OBJECT DISTANCE = uimage distance = vheight of the object = h1height of the IMAGE = h2m=h1/h2= -v/u |
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| 38. |
02. Not an objective of physicaleducation |
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Answer» The main objectives of physical education are to: develop MOTOR abilities LIKE strength, speed, endurance, coordination, flexibility, agility and balance, as they are important aspects for good performance in DIFFERENT games and SPORTS. |
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| 39. |
Surface tension defination |
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Answer» the TENSION of the surface film of a LIQUID caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.Explanation:PLZ MARK me as Brainliest and THANK my answers.... |
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| 40. |
One kilogram is the mass of ...................... litre of water at 40C. |
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Answer» 100Explanation:plz MARK BRAINLY PLEASE please please let me KNOW when you're READY for |
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| 41. |
0°c tap par ek chalak ka pratirodh x I'm hai wah tap gyat kijiye ji par chalak ka pratirodh 3x om ho jata hai chalak ka pratirodh gudank niyat hai. jiska man 0.4×10- 2 ○c-1 hai |
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Answer» sorry I don't know EXPLANATION:PLZ MARK as BRILLIANT and follow me |
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| 42. |
Which of the following statements is not true for a stone attached to a string and swung in a uniform verticalcircular motion?The magnitude of resultant force acting on thestone changes depending on the position of theOstone in the circleThe tension in the string is lowest when the stone isat the highest point of the circular motionThe kinetic energy of the stone is constantthroughout the entire circular motion.The resultant acceleration is always directedOtowards the centre of the circle |
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Answer» Which of the FOLLOWING STATEMENTS isExplanation:not TRUE for a STONE |
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| 43. |
Check the correct of an equation v=x/t where v is velocity,x is displacement and t is time. |
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Answer» b unit is coming alone and GK in HINDI LANGUAGE to right away so iiiiioo to the picture I SENT to me and CE you bevhvbsbtbsbgbg the figure is not your INTEREST and c the attachment of en el on web to the figure of parallel with you mama I have to do go through this site |
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| 44. |
While reading the volume of a liquid that has its curvature going down, one should read the ......................... of the meniscus. |
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Answer» A meniscus occurs because of SURFACE tension in the liquid and must be read at eye level. For a concave meniscus, the correct volume will be read at the bottom of the curve. For a convex meniscus, the OPPOSITE is TRUE and the correct reading will be at the top of the curve. |
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| 45. |
Vector product of two vectors is minimum when the angle between them is |
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Answer» tion:LET the two non-zero Vectors be V and W and the angle between them be aThen, their Scalar PRODUCT = VW COS a = VW * 0 = 0 when a = 90 degreesAnd their Vector Product = VW SIN a = VW * 0 = 0 when a = 0 degrees |
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| 46. |
Derive work energy theorm |
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Answer» The work-energy THEOREM also known as the principle of work and kinetic energy states that the TOTAL work done by the sum of all the forces acting on a PARTICLE is EQUAL to the change in the kinetic energy of that particle. |
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| 47. |
A neutron of mass 1.67 x 102 kg moving with a velocity 2 ms-1 collides with adeuteron of mass 3.34 x 10-27 kg at rest.After collision, if both move as a singleparticle, find its velocity.(A) 0.67(B) 7(C) 0.6(D) 6 |
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| 48. |
1st year physics chapter 1 ka assessment wala topic hai |
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Answer» Wow great I am KOREAN but I can't speak HINDI but can UNDERSTAND it |
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| 49. |
Please answer the physic questions and get 10points |
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Answer» m= +2------>(R)m= -2------->(P)m=+0.5------>(Q)m=-0.5------->(s) |
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| 50. |
Why is the sky is blue?? |
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Answer» The Short Answer: GASES and particles in Earth's atmosphere scatter sunlight in all DIRECTIONS. Blue light is SCATTERED more than other COLORS because it TRAVELS as shorter, smaller waves. This is why we see a blue sky most of the time. |
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