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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. |
What is isothermal process?? |
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Answer» In thermodynamics, an isothermal PROCESS is a TYPE of thermodynamic process in which the TEMPERATURE of the system remains constant: ΔT = 0. ... In contrast, an adiabatic process is where a system exchanges no heat with its SURROUNDINGS (Q = 0).Explanation:good NIGHT sishave a sweet dreams |
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| 3. |
The width of one finger was called an |
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Answer» the fingerbreadth (LITERALLY the width of a finger) is an INFORMAL but WIDELY USED unit of measure. |
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| 4. |
Q.A convex lens has a focal length of 10 cm. At what distance from the lens should the object be placed so that it forms a real and inverted image 20 cm away from the lens? What would be the size of the image formed if the object is 2 cm high? With the help of a ray diagram show the formation of the image by the lens in this case. |
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Answer» Substitute the VALUES in the above equation. Therefore, the object distance is 20 CM. The value of the object distance is twice that of the FOCAL length of the CONVEX LENS. |
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| 5. |
Three point charges q1, q2, and q3, are taken such that when q1, and q2, are placed close togetherto form a single point charge, the force on q3, atdistance L from this combination is a repulsion of2 unit magnitude. When q2, and q3, are combined,the force on q1, from same distance L is ofmagnitude 4 unit and is attractive. Also, q3, andq1, combining exerts a force of magnitude 18 unitin q2, from same distance L. Algebraic ratio ofcharges q1, q2 , and q3, is(1) 1:2:3(2) 2:-3:4(3) 4:-3:1(4) 4: -3:2 |
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Answer» Here is your answer Correct OPTION ISCORRECT option isACorrect option isA1:2:3Correct option isA1:2:3q3(q1+q2) /L² =2Q1(q2+Q3) / L =−4=−4q2(q1+q3) /L² =18=18K1(K1+1) /K1(1+K2) =91=91K1+K2 / K2(K1+1) =−2=−2K2=(K1 / 8K1 + 9) = 2q1 : q2 : q3 = 1 : -6/5 : 2 I hope you get it |
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| 6. |
The region of the electromagnetic Spectrum immediately above the frequencies to which the human eye is sensitive is called a). In 6 ultra-violet C r. f d) Sound waves |
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Answer» ctromagnetic spectrum is broadly classified into different named categories based on the wavelength and characteristics of the energy. The names LIKE "microwave" or "infrared" were developed for convenience to describe electromagnetic radiation with similar characteristics, but there are no DEFINITIVE dividing lines between one spectral region or the next. The only region in the electromagnetic spectrum that is relatively CONSISTENT in the wavelength definition is the VISIBLE spectrum, as it corresponds directly with to wavelengths that human EYES are sensitive to. The visible spectrum is a small window of the entire electromagnetic spectrum.mark me as brainliestand follow me guys |
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| 7. |
The airplane shown is in level flight at an altitude of 0.50 km and a speed of 150 km / h. At what distance d should it release a heavy bomb to hit the target X? |
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Answer» The airplane is in level flight at an altitude of 0.50 km and a speed of 150 km/h. At what distance d should it release a heavy bomb to HIT the target X?First we should find out how MUCH time it takes.This means the time it takes to FALL those 500 meters. It starts at speed 0 vertically. 500=10t22 so t=10 seconds.Now the speed of 150 km/h should be expressed in meters per second. Divide that by 3.6. 150/3.6=41.66... or about 41.67. Now take this tenfold, you get 416.67. Rounding to 2 significant figures instead of 5 gives 420. But why it only asked for 2 significant figures it's weird.A ball is thrown horizontally from the top of a 20-m high hill. It strikes the ground at an angle of 45◦. With what speed was it thrown?Large cannon is fired from the ground level over level ground at an angle of 30 degrees above the the horizontal. The muzle speed is 980 m/s. Neglecting air resistance, the projectile will travel what horizontal distance before striking the ground?A stone is thrown outward from the top of a 59.4m high cliff with an UPWARD velocity component of 19.5m/s. How long is the stone in the air?A racing car traveling with constant acceleration increases its speed from 10m/s to 50m /s over a distance of 60m. How long does this take?An aeroplane is flying horizontally at an altitude of 2 km with 324 km/h. How far from the target should a bomb be released, so that it WOULD hit the target?A bomb is dropped from an aeroplane in level flight at a speed of 40m/s at a height of 490 m above the ground. How far ahead of the point of dropping does the bomb hit the ground (g=9.8m/s)?A stone is thrown upward from the top of CA = 59.5 on a high cliff with an upward velocity component of 19.6 m/s. How long is stone in the air?An aeroplane traveling horizontally at 78 meters per second at a height of 210 m drops a bomb to hit the target. At what horizontal distance from the target should the bomb be dropped?A bomb dropped from an aeroplane in level flight hits a target on the ground, which is 500 m ahead of the point of dropping. If the speed of the aeroplane is 50 m/s, what is its height at which it was flying?What is the time that the stone stays in the air in second if it is thrown outward from the top of a 59.4 m high cliff with an upward velocity component of 19.5 m/s?A ball is thrown horizontally from the top of a 20-m high hill. It strikes the ground at an angle of 45◦. With what speed was it thrown?Large cannon is fired from the ground level over level ground at an angle of 30 degrees above the the horizontal. The muzle speed is 980 m/s. Neglecting air resistance, the projectile will travel what horizontal distance before striking the ground?A stone is thrown outward from the top of a 59.4m high cliff with an upward velocity component of 19.5m/s. How long is the stone in the air?A racing car traveling with constant acceleration increases its speed from 10m/s to 50m /s over a distance of 60m. How long does this take?An aeroplane is flying horizontally at an altitude of 2 km with 324 km/h. How far from the target should a bomb be released, so that it would hit the target?A bomb is dropped from an aeroplane in level flight at a speed of 40m/s at a height of 490 m above the ground. How far ahead of the point of dropping does the bomb hit the ground (g=9.8m/s)?A stone is thrown upward from the top of CA = 59.5 on a high cliff with an upward velocity component of 19.6 m/s. How long is stone in the air?An aeroplane traveling horizontally at 78 meters per second at a height of 210 m drops a bomb to hit the target. At what horizontal distance from the target should the bomb be dropped?A bomb dropped from an aeroplane in level flight hits a target on the ground, which is 500 m ahead of the point of dropping. If the speed of the aeroplane is 50 m/s, what is its height at which it was flying?What is the time that the stone stays in the air in second if it is thrown outward from the top of a 59.4 m high cliff with an upward velocity component of 19.5 m/s?Explanation:hope it will be helpful to you dear friend |
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| 8. |
all three laws of motion with two applications of each law. PLEASE MAKE A DRAWING ON IT OR SEND THE LINK OF DRAWING , IT WILL BE VERY THANKFUL |
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Answer» tion:Cloth LEFT with Tina = 20m 5cm - 4M 50cm= (19M + 1m + 5cm) - (4m + 50cm)= (19m + 100cm + 5cm) - (4m + 50cm)= 19m + 105cm - 4m - 50cm= 15m + 55cm= 15m 55cm |
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| 9. |
A ball of mass 2 kg impinges directly with a ball of mass 1 kg, which is at rest. If the velocity of the smaller mass after impact, be the same as that of the first ball before impact, find the coefficient of restitution. |
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Answer» tion:JIA is the first thing I did in HINDI in a few years time and ENERGY companies have to be CAREFUL not for me but for the first time in the air and energy companies that in the us are not allowed in hindi and the us are the promise that in the world of our universe is not the same thing as a God I BELIEVE that God I have to be the dik has a good reputation and energy |
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| 10. |
In cataract ,the lens of the eye become |
| Answer» CLOUDY or hazyExplanation:When the LENS of your EYE becomes hazy, it is called a cataract. A cataract can PROGRESS to the DEGREE observed in this person's right eye over time. | |
| 11. |
Units and instruments used for measurement |
| Answer» HELLO hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hellohello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello hello | |
| 12. |
चक्की के एक पाट का द्रव्यमान 5.0 kg और व्यास 0.4m है । यह 2 चक्कर प्रति सेकंड के वेग घूम रहा है । उस बल - आधूर्ण का परिकलन कीजिए जो इस पाट पर लगाया जाए तो इसका कोणीय वेग 25 में बढ़ कर 8 चक्कर प्रतिसेकंड हो जाए । ( पाठ Session 2018-19 |
| Answer» 50 kg is correct ANSWER Explanation:चक्की के एक पाट का द्रव्यमान 5.0 kg और व्यास 0.4m है । यह 2 चक्कर प्रति सेकंड के वेग घूम रहा है । उस बल - आधूर्ण का परिकलन कीजिए जो इस पाट पर लगाया जाए तो इसका कोणीय वेग 25 में बढ़ कर 8 चक्कर प्रतिसेकंड हो जाए । ( पाठ SESSION 2018-19 | |
| 13. |
Plastic bags are not allowed below particular thickness name the unit toexpress it's thickness? |
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Answer» zuykstkyykdjysjgxkgdi6do |
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| 14. |
List five disadvantage of using alcohol as thermometric liquid |
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Answer» tion:1) It has a high FREEZING point therefore it cannot be used in places where the temperature GETS very low. 2) Alcohol expands uniformly. -It has a low freezing point (-115 degreecentigrade) therefore it is very suitable for place where the temperature gets very low. 3) It needs to be DYED, since it's colourless.4) It expands uniformly (LINEAR expansion) and responds quickly to temperature changes, hence is sensitive.5) It is a good conductor of heat and therefore the whole LIQUID reaches the temperature of the surroundings quickly. |
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| 15. |
Why does the water enters into our stomach not in any other body part |
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Answer» a MAJORITY of WATER absorption into the bloodstream occur after water passes through the stomach and into the SMALL INTESTINE. |
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| 16. |
An object of mass 5kg is moving at a constant velocity of 15m/s, calculate it's kinetic energy |
| Answer» TION:KINETIC energy=1/2mv^2 = 1/2 × 5× 15×15 = 562.5 JOULES | |
| 17. |
A steel cylindrical water tank could be filled with 25 cm^3 of water. What is it's volume in cm^3? |
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Answer» The VOLUME is 75 cm^3.You have ALREADY mentioned.Plz MARK me as the BRAINLIAST. |
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| 18. |
An electric dipole of moment P is placed in a uniform electric field of intensity E at an angle deeta with respect to the field.The direction of the torque is |
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Answer» The direction of the TORQUE is in the right directionExplanation:please MARK me as BRAINALIEST |
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| 19. |
What happens when a tumbler made with a piece of cloth? |
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Answer» tion:Distance from India to South Korea is 5,023 kilometers. To tell me who will bharwayega DIESEL in truck/bus .because Fuel prices crossed 100.too kitne log PHIR se cycle PE chalne to taiyar HAI .xd xd xd |
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| 20. |
The correct way of writing speed of light is |
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| 22. |
A hammer of mass 1 kg moving at 25m/s strikes a nail . The nail stops the hammer in a very short time of 0.02 seconds . What is the force of the nail on the hammer ? |
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Answer» 1250N Explanation:Mass of the hammer = 1kg Initial velocity = 25m/s Final velocity = 0m/s (since it comes to rest) TIME taken to STOP the hammer = 0.02 secBy 2nd LAW of MOTION = m(v - u)/t= 1(25 - 0)/0.02= 25/0.02= 1250NForce = 1250N Thank you! ❤️ |
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| 23. |
A round body moving along a straight path will have these motions . |
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Answer» A round BODY MOVING along a straight path will have these motions = ROTATORY, translatory.Explanation:HOPE THIS WILL BE HELPFUL FOR YOU.❤❤❤❤❤❤❤❤ |
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| 24. |
Find the resultant force of 8 N along X-Axis, 12 N along 45 degrees to the X-Axis and 5 N along Y-Axis using the Head-To-Tail rule? |
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Answer» Correct option isB5 2 , 4π F 1 =5 X F 2 =5 y The RESULTANT vector then is F R = F 1 + F 2 =5 x +5 y therefore,F R =5 2 N and its direction is 45 0 with RESPECT to the x=axis.Explanation:please mark me as Brainaliest |
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| 25. |
Derive the mirror formula. |
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Answer» ivation of the mirror formula is one of the most common questions asked in various board examinations as well as competitive examinations. A mirror formula can be DEFINED as the formula which gives the relationship between the distance of object ‘u’, the distance of image ‘v’, and the focal length of the mirror ‘f’. The mirror formula is applicable for both, plane mirrors and spherical mirrors (convex and concave mirrors). The mirror formula DERIVATION is provided here so that students can understand the concept of the topic in a better way. The mirror formula is written as:AttachmentAssumptions for Derivation Of Mirror FormulaThe following assumptions are taken in order to derive the mirror formula.The distances are being measured from the pole of the mirror.According to the convention, the negative sign indicates the distance measured in the direction opposite to the incident ray while the POSITIVE sign indicates the distance measured in the direction of the incident ray.The distance below the axis is negative WHEREAS the distance above is positive. |
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| 26. |
What is mean absolute error ? |
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Answer» I HOPE this helps you EXPLANATION:The difference between the measured or inferred VALUE of a quantity and its actual value , GIVEN by. (sometimes with the absolute value TAKEN) is called the absolute error. |
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| 27. |
A body travels on a straight line with an initial velocity of 2 m/s . If its uniform acceleration is 1 m/s2 , its velocity at the end of 5 seconds is |
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Answer» 7m/sExplanation:u=2m/sa=1m/s²t=5sv=?v=u+at = 2+1×5 = 7m/s |
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| 28. |
Identify identify the kind of motion. |
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Answer» 1 ST constitute velocity motion2nd uniform time GRAPH3 TRIANGULAR FORM of MOTION |
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| 29. |
Which of the following functions will have only one turning point? |
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Answer» is the correct ANSWER. Explanation :A turning POINT is a point of the graph where the graph changes from increasing to decreasing (rising to falling) or decreasing to increasing (falling to rising).A POLYNOMIAL of degree N will have at most (n – 1 ) turning points.So, in FUNCTION, there is degree n= 2 so turning point = 2-1 = 1N.B: this function is not visible to me. |
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| 30. |
An object is placed at a distance of 50 cm from a convex mirror. State two characteristics of the image formed? |
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Answer» convex LENS some common characteristics :-1. The IMAGE FORMED is virtual and erect.2. The image formed is diminished.3. The image is formed behind the mirror._______________________ |
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| 31. |
6/3 C charge can exist in a body ( True or false) please ans correctly 6/3 = 2 C i think so. |
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| 32. |
What you understand by the term Wavelength. Calculate the Frequency and Time Period of a radio wave having its wavelength of 10m propagating in space. |
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Answer» The distance between SUCCESSIVE CRESTS of a wave, especially points in a SOUND wave or electromagnetic wave.hope it's HELPFUL |
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| 33. |
Give reasons. 1. Different units are used to measure volume of different objects.2. Bottles aur package containing liquids have their volume marked in litre and ml, respectively.3. We you cm² as a unit to measure the area of an eraser. 4.Mass of an object remains same irrespective of the surroundings.5. A shopkeeper uses standard weights for measurement. |
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Answer» gntataExplanation: |
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| 34. |
A parallel-plate capacitor is suspended by two fixed-guided cantilever beams, each with length, width and thickness denoted L, W and t respectively as shown in figure. The material is polysilicon, with a Young’s modulus of 120 GPa (l = 400 µm, W = 10 µm and t = 1 µm). The gap Xo between two plates is 2 µm. The area of the plate is 400 µm by 400 µm. Calculate the safety voltage (maximum voltage) to be applied to ensure that the two plates do not touch each other. |
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Answer» bzbznxodjxkdkdixkdjdkd fndnxnExplanation:xnxnnxnsndnxndnxkxnxkxjdjdjdjfjxjd |
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| 35. |
If x,v and a denote the displacement the velocity and the acceleration of a particle executing Simple Harmonic motion of time period T. |
| Answer» ANSWER is SIMPLE HARMONIC motionExplanation:PLEASE MARK me as Brainaliest | |
| 36. |
A builder lifts eight slabs from the ground on the back of a lorry 1.5m high.The total time taken is 48s and each slab weighs 200N. How much useful power does the builder produce? |
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Answer» jsjsjajajshhshshsbsbsbsbbdbdhdbd |
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| 37. |
The density os a substance is 500kg/m3. find its relative density? |
| Answer» R. d=1/2500/1000as r. d = d of object/d of WATER =500/1000 | |
| 38. |
I have a long bamboo which is sprayed diagonally in 8 metre multiply 6 m dimension rectangle room what is the maximum length of bamboo |
| Answer» 48 I THINK it is 8×6=48 HOPE it is CORRECT | |
| 39. |
গ্রাম সংকেত ওজন বলতে কি বোঝায় ? |
| Answer» SORRY BRO i can't UNDERSTAND LANGUAGE | |
| 40. |
While in a moving car,what are your states with respect to driver and trees outside respectively |
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Answer» with RESPECT to DRIVER he is in in REST but with respect to TREE it is in MOTION |
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| 41. |
What is meant by physical and chemical properties of matter plz explain |
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Answer» rat KOHLI hits SIX is matter GIVE rate if UR a die cricket FANS |
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| 43. |
What is percentage error ? |
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Answer» The APPROXIMATION error in some DATA is the discrepancy between an exact value and some approximation to it. An approximation error can occur because: the measurement of the data is not PRECISE DUE to the instruments |
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| 44. |
QUESTION:- 》Can a body have constant speed as well as variable velocity ? If yes, give one example. |
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Answer» ,Yes, a BODY has constant SPEED as well as variable VELOCITY. Consider an example: A particle moving in a CIRCULAR PATH with a uniform circular motion. |
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| 45. |
A rope of length 20m hangs from a hot air balloon of mass 40kg. The one end of the rose just touches the ground. A monkey climbs halfway to the balloon on the rope. By what distance will the balloon move to which direction? Mass of the monkey is 20kg |
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Answer» tion:First and second Will be ADD, an THIRD ONE is subtracted. |
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| 46. |
What does the UPSC do? |
| Answer» TION:UPSC is India's central agency which CONDUCTS exams like CIVIL Services Exam (CSE) to recruit candidates into TOP government services like IAS, IPS, IFS etc. UPSC recruits candidates to both civil services as well as defence services.Hope it helps ☺☺ | |
| 47. |
A block of mass 2kg is kept on a smooth inclined plane of mass 8kg and the ground is frictionless. What minimum force should be applied on the inclined plane such that the block does not slide on the inclined plane. Inclination is 37° |
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Answer» your ANSWER is in the ATTACHMENT |
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| 48. |
Write this fraction as powers of ten: 3/60 000 |
| Answer» TION:= 3/6*10000= 0.5*10^-4= 5*10^-5HOPE IT HELPS U | |
| 49. |
How can be velocity changed ? Give one example of each case |
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Answer» is possible for a body to have constant speed as WELL as variable VELOCITY.A body moving on a circular path with constant speed that is undergoing a uniform circular motion has variable velocity. The DIRECTION of velocity changes each MOMENT and hence the velocity is not constant. |
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| 50. |
26. A particle is released from rest at the point x = a and moves along the x-axis subject to the potential energ function U(x) shown. The particle-Xa b c d(1) Oscillates back and forth between x = a and x = e(2) Oscillates back and forth between x = a and x = 0(3) Moves to infinity at varying speed(4) Moves to x = e where it remains at rest(5) Moves to x = b where it remains at restAak |
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Answer» ka weeks ek IEEE oz to of to ozDiya 24th ka WOH WOOF seek oz seen hi |
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