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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. |
In the following JK flip flops, the initial content of Q0Q1 is 00. After the application of clock pulse, the content of Q0Q1 is changed to 10.The possible input combinations are1) J0=1, K0=0,J1=0, K1=12) J0=0, K0=1,J1=0, K1=13) J0=1, K0=1,J1=0, K1=0 |
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| 2. |
Match the following:Column 1Column 1NostocI RingwormTu LaminariaTivl Agaricuslal A fungus[b] Fodder of sheepIcl Fix atmospheric N,Idl Caused by fungus |
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| 3. |
The uniform slender bar of length 4r and mass m rests against the circular 3 pointssurface as shown in figure. Determine the normal force at the contactpoint C and the magnitude of the ideal pivot reaction at O. Normal force atC. hinged reaction at O in x and y direction arew2173m |
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Answer» rfovxrdcjxfkcxivxunvcj |
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| 4. |
In lo3. A bus actelovate uniformle s9kmto2km 1hCalculatesacralaration in misDistance covered by bus metr .during |
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Answer» MARK the above FRIEND as BRAINLIEST |
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| 5. |
1) study the following circuit and answer the question that follows:a) state the type of the combination of two resistors in the circuitb) how much current is flowing through 1) 10 ohm and through2) 15 ohm resistors? c) what is the ammeter reading |
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Answer» PARALLEL combination Explanation: V= IR I = V / R a =3/10 =0.3 A b = 3/15 =0.2A I = 0.5A |
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| 6. |
2 points10.A ray of light incident at anangle of incidence 40°on aprism of refracting angle60°suffers minimum deviation.Calculate the angle ofminimum deviation. |
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Answer» Answer: given, angle of incidence, i=48° refracting angle, A=60° angle of MINIMUM DEVIATION, MIN=? as min=2i-A min=2(48)-60 min=36° |
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| 7. |
2 points27.The ratio of amplitudes oftwo waves is 2:3. Find the ratioof their loudness.04:9O 9:4O8:27 |
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Answer» ANSWER (i) Loudness of sound is DIRECTLY PROPORTIONAL to the square of amplitude i.e., Loudness (L)∝a2 Ratio of Loudness =L2L1=a22a12=(4)2(3)2=169=9:16 (ii) Change in amplitude of a sound does not affect its frequency. ∴ Ratio of FREQUENCIES remains same =1:1 |
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| 8. |
B.C. 35 m3. A battery whose e.m.f. is 40 V has an internal resistance of 5 . If this batterconnected to a 15 2 resistor 'R', what will be the voltage drop across 'R'?A. 10 VD. 50 VB. 30 VE. 70 Vr40 V |
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Answer» Answer: Total Resistance = Internal resistance + external resistanceR=5+15R=20 ΩTotal current flowing in the circuitI= E/RI= 40/20=2I=2 Amps.Drop Across 15Ω resistorV= IRV=2 x 15V=30 VoltsPLZ MARK AS BRAINLIEST ANSWER AND THX FOR THE SUPERB QUESTION
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| 9. |
Etis & Awerage.whatae locity between to zo10 sec ?ni whatis veloc10sec ?velocityin whatvelocityt Displacementis&+= 0tomlostime |
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Answer» what is this? |
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| 10. |
30.A boy hears an echo of his 2 pointsown voice from a distant hillafter 4 s.The speed of soundin air is 350m/s. What is thedistance of the hill from theboy? |
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Answer» Explanation: LET Distance between boy and HILL = d metres Total distance traveled by sound = 2d metres Speed of sound = 350 m/s Distance = speed x time 2d = 350 x t => d = 175t metres please mark my ANSWER as brainliest if it helped you |
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| 11. |
57. In the arrangement as shown, tension T2 is(g = 10 m/s2)60°T30°T₂10 kg(1) 50 N(2) 100 N(4) 100V5 N(3) 50V3 N |
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| 12. |
.In a SONAR ultrasonic waves are sent into the sea water and the reflected waves from a sunken ship are received after 4s.If the velocity of waves in sea water is 1450m/s.Find the depth of the sunken ship..please answer fast!! |
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Answer» 1450 ×2 =2900 m Hope it HELPS |
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| 13. |
निम्नांकित मे किस व्यंजक का विमीय सूत्र दूसरोंसे भिन्न है?(A) JEE-(Eनिर्वात की विद्युतशीलता,E: वैद्युत क्षेत्र(B) hy (h : प्लांक नियतांक, " : आवृति)(C) pgh (p: घनत्व, g: गुरुत्वीय त्वरण, h: उँचाई)(D) Spi (p: घनत्व, v: वेग) |
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| 14. |
06.A body can rotate in a vertical plane at theend of a string of length L. The horizontalvelocity imparted to the body in its highestposition, so that the tension in the string atthe lowermost position is ten times the weightof the body, will be(A)✓ 13gL✓ 58L(B)✓ 6gb(C)(D)√ sl |
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Answer» Answer: |
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| 15. |
1.5 मीटर लंबी लड़की जो 5 मीटर ऊंची एकचहारदीवारी से 15 मीटर दूर खड़ी है, चहारदीवारीकी ओर 0.25 किग्रा का एक पत्थर क्षैतिज से450 कोण पर फेंकती है। पत्थर का न्यूनतम वेग,जिससे वह चहारदीवारी के ऊपर से गुजर जाए, है:(B) 10.2 मी/सेकेंड(C) 13.8 मी/सेकेंड (D) 19.6 मी/सेकेंड(A) 9.8 मी/सेकेंड |
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| 16. |
An object of mass 200kg us accelerateunformly from a velocity of 5 m/ota10 mis. Calculate the initial & finalmomentum of the object. Also findthe magnitude of the force exerted on the object |
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Answer» MASS = 200 KG INITIAL VELOCITY = 10 M/S FINAL VELOCITY = 20 M/S A) INITIAL MOMENTUM = MASS X INITIAL VELOCITY = 200 x 10 = 2000 KGM/S B) FINAL MOMENTUM = MASS x FINAL VELOCITY = 200 x 20 = 4000 KGM/S C) FORCE = CHANGE IN MOMENTUM / TIME TAKEN = 40002000 /2 = 2000/2 = 1000 NEWTONS |
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| 17. |
Pthere v = velocity of sound,VeP= pressure and p = density of medium.check it's correctness |
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| 18. |
Classify each of the following as a homogenous or heterogeneousmixture soda water, wood, air, soul, vinger, filtered tea |
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Answer» Homogeneous mixtures : Soda water, vinegar and filtered tea. Heterogeneous mixtures : WOOD and soil. Air is a homogeneous mixture of different gases. HOWEVER, if some dust or other particles are also PRESENT, then air BECOMES heterogeneous mixture. |
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| 19. |
মান. তামার CGS পদ্ধতিতে তাপ পরিবাহিতাঙ্কের মান 0.92 হলে SI-তে এর মাননির্ণয় করে।সংসদ নমুনা] [386.4 J. m-1.s-l. K-1] |
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Answer» Answer: ক্যালোরি [CALORIE]:- 1 গ্রাম বিশুদ্ধ জলের উষ্ণতা 1oC বৃদ্ধি করতে যে পরিমাণ তাপ প্রয়োজন হয় তাকে 1 ক্যালোরি বলে । CGS পদ্ধতিতে তাপের একক হল ক্যালোরি ।
☼ জুল [JOULE]:- SI পদ্ধতিতে তাপের একক শক্তির এককে প্রকাশ করা হয় । SI পদ্ধতিতে তাপের পরিমাপের একক হল জুল । 1 ক্যালোরি = 4.1825 জুল = 4.2 জুল (প্রায়) ।
► তাপের পরিমাপ নির্ণায়ক বিষয়সমূহ [FACTORS DETERMINING the quantities of heat]:- |
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| 20. |
Draw the following graphs between distance and time of an object in case of (i) for a body atrest (i) for a body moving with uniform velocity (iii) for a body with uniformly acceleratedmotion. |
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Answer» Explanation: i can not make GRAPH so sorry for that but I will explain you in English
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| 21. |
विरामावस्था से चलकर एक कार एक सड़क पर'd' दूरी तय करती है जहां सड़क और टायरो केमध्य घर्षण गुणांक है। न्यूनतम समय, जिसमेकार यह दूरी तय कर सकती है, समानुपाती होगाः(A)(B)म(C) 2(D) 2 |
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| 22. |
Questions Based on High Order Thinking Skills (HOTS)A student did an experiment with a convex lens. He put an object at different distances 25 cm, 30 cm, 40 cm,60 cm and 120 cm from the lens. In each case he measured the distance of the image from the lens. Haresults were 100 cm, 24 cm, 60 cm, 30 cm and 40 cm, respectively. Unfortunately his results are written inwrong order.(a) Rewrite the image distances in the correct order(b) What would be the image distance if the object distance was 90 cm?(c) Which of the object distances gives the biggest image?(d) What is the focal length of this lens ?42. A magnifying lens has a focal length of 100 mm. An object whose size is 16 mm is placed at some distancefrom the lens so that an image is formed at a distance of 25 cm in front of the lens.(a) What is the distance between the object and the lens ?(b) Where should the object be placed if the image is to form at infinity ?43. A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm,find the focal length of the lens. |
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Answer» BRAINLIST my answer Explanation: THANKS my all answer |
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| 23. |
A convex lens forms an erect and two times magnified image of an object placed at a distance 10cm in front of it.Find the position of the image.please ans fast !!!! |
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Answer» Answer: Answer: A) the object is placed between F1AND OPTIC center . b) the focal LENGTH could be found through lens formulae as magnification is +3. +3u=v 1/f=1/v-1/u =1/3u-1/u =(1-3)/3u =-2/3*-20(u =-20) =f=15cm |
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| 24. |
What is a sound?????plzzzz followwwww meeand said thank for my answerLove uhhh allll.❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ |
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Answer» SOMETHING that you HEAR or that can be heard आवाज़, ध्वनि (ऐसी चीज़ जिसे हम सुनते हैं या जो हमें सुनाई देती है) |
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| 25. |
A body of mass m covers certain distancein two equal interval of time. For 1 stinterval its speed is 30 km/h and forsecond interval, 20 km/h. The averagespeed of body is |
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| 26. |
A body moving with a velocity of 15 metre per second from rest 20 second find the acceleration of the bodyplease guys answer this fast plzz |
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Answer» Answer: use FORMULA of acceleration distance/time PUT the values and you get your ANS |
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| 27. |
If a force acts on a body (movingwith constant speed) in the direction of its motion, the speed of thebody moving with constant speeda) zero b)increases c)decreases d) cannot be measured |
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Answer» MARK as BRAINLIEST |
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| 28. |
Heat produced in a current carrying conducting wire depends on current I, resistance R ofthe wire and time t for which current is passed. Using these facts, obtain the formula forheat energy. |
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Answer» Let the heat produced be H, the current through the wire be I, the RESISTNCE be R and the TIME be t. H=i^2RT Explanation: The heat produced in conducting wire is given by joules law as, H=I^2RT i ) The amount of heat produced in current conducting wire, is PROPORTIONAL to the square of the amount of current that is flowing through the circuit, when the electrical resistance of the wire and the time of current flow is constant. ie H∝I 2 (when R, t are constant) II) Heat GENERATED due to the flow of current is proportional to the time of current flow, when the electrical resistance and amount of current flow is constant. ie H∝t (when I,R are constant) III) The amount of heat produced is proportional to the electrical resistance of the wire when the current in the circuit and the time of current flow is constant. ie H∝R (when I, t are constant) hope this will be helpful to youplease follow me only if u like |
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| 29. |
Ball is A is dropped from the top of a building At the same instant ball B is thrown vertically upwards from the ground. When the balls collide, they are moving in opposite directions and the speed of A is twice the speed of B. At what fraction of the height of the building did the collision occurs??a) 1/3b) 2/3c) 1/4d) 2/5 |
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| 30. |
Find the pressure exerted by a Waterbedwith dimensions of 2mx 2m which is 30 cm thick Hínt:use density of water |
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Answer» 0.3×1000×10/4= 250 ×10×0.3=30×25=750Pa |
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| 31. |
The position of a particle moving in the x-y plane at any time to is given by X= 3t2-6t metres and y=t2-2t metres. Select the correct option. |
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Answer» particle is moving along the x-axis with its cordinate with time 't' GIVEN by . Another particle is moving along the y-axis with its COORDINATE as a FIGUREunction oFIGURE time given by y(t)= At t=1 s, the speed oFIGURE the4 second particle as MEASURED in the FIGURErame oFIGURE the FIGUREirst particle is given as . Then v (in m//s) |
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| 32. |
Derive the Power For:i) Only R in the Circuitii) Only L in the circuitiii) Only C in the circuitiv) LCR |
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Answer» Answer: A CONSTITUTION is an aggregate of fundamental PRINCIPLES or established precedents that CONSTITUTE the legal basis of a polity, ORGANISATION or other type of entity and commonly DETERMINE how that entity is to be governed |
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| 33. |
ECE 131 (SAB)34 Using Nodal Analysis,Determine the uouages offarcircuitName - Ashi varshneyReg. Nol-12012748Roilo!Ques-No-04nodesland 2Page. NouSection - K2OPP |
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Answer» what is this??????????????????????? |
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| 34. |
A charge placed at a distance from an electric dipole in the end-on position experiences a force F. If the distance bedoubled, the force will become F/8 F/2 F/4 2F |
Answer»
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| 35. |
Two point charges A and B of values of +15 pc and +9uc are kept 18 cm apart in air. Calculate the work done when B.ismoved by 3cm towards 1.92 x 10^4J 1.35 J17.9 J1.84 x 10^-4J |
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Answer» pls CHECK the question again WHETHER value of CHARGE A is 15pc or 15uc |
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| 36. |
If the distance b/w two charges is reduced to half. By what percent will the force increase200 % 400 %100 %300 % |
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Answer» Answer: 200% .................... |
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| 37. |
A stone is tied to the end of a string and swung with constant speed around a horizontal circle with a radius of 1.5m . If it make two complete revolution each second, the megnetude of acceleration is |
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Answer» Answer: A stone is TIED to the end of a string and SWUNG with constant speed around a HORIZONTAL CIRCLE with a radius of 1.5m . If it make two complete revolution each second, the megnetude of acceleration is Explanation: ITZ Mr Nobody |
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| 38. |
Which of the following option is correct?O Static friction is always less than kinetic frictionO Static friction is always greater than kinetic frictionO Static friction is always equal to kinetic frictionO Static friction may be less, equal or greater than kinetic friction |
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Answer» Answer: Static Friction may be LESS, equal or GREATER than KINETIC friction Explanation: Coz it's a FACT |
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| 39. |
Evaluate (104)3using suitable identity. |
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Answer» Answer: The answer is 1124864 hope the above answer HELPS you brainliest and FOLLOW and ALSO RATE my answer. |
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| 40. |
PLEASE ANSWER ALL QUESTIONS CORRECT!!I will mark you brainliest!!! |
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Answer» a .TRUE b true C. true d. true e.false |
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| 41. |
1-an object is placed at C1 in front of a convex lens .what is the (1) position(2)- size (3) - nature of image |
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Answer» Image of an object PLACED at center of curvature is INVERTED, REAL and of the same SIZE and is formed at the center of curvature. Hence image will be real and at the center of curvature |
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| 42. |
Which of the following option is correct forthe object having a straight line motionrepresented by the following graph |
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Answer» hii Explanation: HELLO sorry i can't understand |
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| 43. |
What is the momentum of a man of mass 65 kg when he walks with a velocity of 2 m/s ? *13000 kg m/s67 kg m/s130 kg m/s130 g m/s |
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Answer» c is the answer Explanation: Because as per the formula p=mv =65*2 =130kg m/sec |
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| 44. |
12.If the reading of ammeter A, in figure, is 2.4 A,what will the ammeters A, and A, read? Neglectthe resistances of the ammeters. |
Answer» If the READING of ammeter A1in figure is 2.4 A, what will the ammeter A2andA3read? Neglect the resistances of the ammeter. A3=A1+A2=2.4+1.6=4.0A.plz mark as brainliest answer and THX for the superb question |
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| 45. |
. A water tanker filled up to 7/8 of its height is moving with a uniform speed. On sudden application of the brake, the water in the tank would *move backwardmove forwardbe unaffectedrise upwards |
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Answer» By inertia , If the car MOVES FORWARD and suddenly STOPS then the WATER also moves forward Here option b is correct P.S. If this had happened on a slope then water would move forward and upward(ie. water would rise MARK AS BRAINLIEST PLEASE |
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| 46. |
1. An experiment is conducted tomeasure the density of an object ofunknown material as shown. Mass of theobject is measured using weighingmachine and it turns out to be 100 g.Calculate the density of the object ing/cm-cube).10090-807070AfterBeforebeliableSR8898890050403020 |
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| 47. |
Iii)amme -GENIUS LearningHow much heat is evolved when 12g ofCO reacts with NO,?The reaction is :+ 2NO → 4CO260) + N.2(g)2(g) 2(g)'ArHº = - 1200 kJ.4CO) |
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Answer» Answer:7.) when 500 calories of heat is supplied, it ture by 500 its mau heat is to be supplied to raise its temper 50 moste otres betrouros do Botector TOON to oiton AUT avtoos SOOL to. Venerinas TEMPERATURE naises by 15 c, how much. Explanation: |
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| 48. |
Capacitance of a capacitor is 16 uF. If a dielectric slab of dielectric constant 8 is inserted between the plates of capacitor.Then the capacitance of the capacitor will beA) 128uFB) 16uFC) None of theseD) 2uF |
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Answer» B is CORRECT Please mark me as brainliest Given, 16μF V = Q/C = Q/16μF When DIELECTRIC is inserted V' = Q/C = Q/K (16μF) = V/8 Q/K (16μF) = Q/8 × 16μF K = 8 OPTION B is correct. |
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| 49. |
The net force acting on a body of mass of 14 kg moving with a uniform velocity of 2 m/s is- *28 m/s0 N7 m/sNone of these |
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Answer» Answer: in option there is only ONE Unit of FORCE 0N and a=0m/s² as it is in UNIFORM VELOCITY |
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