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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. |
1. Why should a knife be sharp? |
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Answer» Hope it helps you mate ... Explanation: Knives which are continually used on commercial PREMISES must always be kept sharp - a blunt or DULL knife is dangerous because it requires more pressure and is more likely to slip and cause an injury. This is the single most important reason to KEEP all knives sharp. |
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| 2. |
If surface charge density is positiveelectric field will beSelect one:a. perpendicularb. outwardc. paralleld. inward |
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Answer» Explanation: |
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| 3. |
The value of acceleration due to gravity is:(A) least on equator (B) least on poles(C) same on equator & poles(D) increases from pole to equatorpls explain as well. |
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Answer» (A) least on equator . Explanation: The value of acceleration due to GRAVITY is least on equator because distance between surface of the earth and its CENTRE is more on equator than in poles. Explanation: At any instance of time object in circular motion tend to be in RECTILINEAR motion. I HOPE THIS HELPS U MARK ME AS BRAINLIEST AND FOLLOW ME THANK YOU |
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| 4. |
What are the laws of refraction? |
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Answer» Laws of REFRACTION :
HOPE IT HELPS U.. |
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| 5. |
घ. प्रकाश के सचरण की प्रकृति होती है।(1) अनुदैर्घ्य(ii) अनुप्रस्थ(iii) दोनों(iv) कोई नहीं |
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Answer» Answer: Explanation: |
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| 6. |
Diagonal of the parallelogram passing through the same point of intersection gives-------of the resultsnt.Cotions |
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Answer» They just represent TWO individual vectors which are scattered In free space.the parallelogram of vector ADDITION is only valid when the diagonal (resultant vector )passes or starts from the POINT of intersection of the two given ADJACENT sides of the parallelogram (vectors) |
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| 7. |
14 The trajectory of a projectile launched from ground is given by the equation y = -0.025 x2 + 0.5 x, where x and y are the coordinate of the projectile on a rectangular system of axes.Find the initial velocity and the angle at which the projectile is launched. |
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Answer» projectile is any OBJECT thrown by the exertion of a force. It can ALSO be defined as an object launched into the space and allowed to MOVE free under the influence of gravity and air resistance.Although any object in MOTION through space may be CALLED projectiles, they are commonly found in warfare and sports. |
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| 8. |
One end of a 1.0-m long string is fixed, the other end is attached to a 2.0-kg stone. The stone swings in a vertical circle, passing the bottom point at 4.0 m/s. The tension force of the string (in newtons) at this point is about: |
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Answer» Explanation:
★ In each of the following pair of number state which whole number is on the left on the other number on the number line , also write them with the appropriate SIGN {<,>} between them . (a) 530,503 (B) 370,307 (c) 98765,56789 D. Admin management
(c) 98765,56789 Greenhouse gases are gases in Earth's atmosphere that trap heat. They LET sunlight pass through the atmosphere, but they prevent the heat that the sunlight BRINGS from leaving the atmosphere. ★ Overview of Greenhouse Gase Carbon Dioxide. Methane. Nitrous Oxide. Fluorinated Gases |
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| 9. |
an object of height 2cm is placed at the distance of 15 cm from concave mirror of focal length 12cm find the height of the object |
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Answer» Explanation: A cell wall is a structural layer surrounding some types of cells, just outside the cell MEMBRANE. It can be tough, flexible, and SOMETIMES rigid. It provides the cell with both structural SUPPORT and protection, and also acts as a filtering MECHANISM |
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| 10. |
The value of acceleration due to gravity is:(A) least on equator (B) least on poles(C) same on equator & poles (D) increases from pole to equator |
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Answer» Answer: ● The VALUE of acceleration DUE to GRAVITY is LEAST on EQUATOR. |
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| 11. |
Which of the following situations ispossible?(a) An object can have acceleration, but constantvelocity(b) The velocity of an object may be zero butacceleration is not zero.(c)Distance and the magnitude of displacementare equal in circular motion,(d) Average speed and the magnitude of averagevelocity are always equal in circular motion. |
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Answer» B, C are correct Explanation: PLEASE MARK me brainliest at GIVE me 5 star if u like my answer |
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| 12. |
WRite the importance of anomalous explain of water |
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Answer» Explanation: At about 4°C water reaches its MAXIMUM density. This anomalous behaviour is an important characteristic of water, which played a significant role in sustaining MARINE life. Because of this unusual property, FREEZING of a body of water, due to CHANGES in weather, BEGINS at the surface. |
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| 13. |
the relative motion between the adjacent layers of a fluid in motion is called viscous force which of flowing suits the best in the sentance |
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Answer» okkkk Explanation: this is the answer |
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| 14. |
एक वस्तु पर 5 इलेक्ट्रान की अधिकता है। वस्तु पर आवेश होगा(1) +5e (ii) +250(iii)-5e(iv) -25e |
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Answer» +5E................. |
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| 15. |
In the fifth stage of water purificationO a.Sedimentation is doneO b.filtration is doneO c.chlorination is doneO d.all the above |
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Answer» Answer: B will be the answer Explanation: |
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| 16. |
Draw fbd to show the forces acting on a car moving at non uniform speed |
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Answer» Explanation: The force acting on the CAR are, 1.force APPLIED by the ENGINE = F 2.friction applied by road = f 3.normal force =N1 and N2 4.weight (gravitational force) =W |
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| 17. |
,1. An electric heater consumes 1.8Mjwhen connected to a 250 Vsupply for 30 minutes. Find thepower rating of the heater?05000W( ) O1200WO 500WO 1000W |
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Answer» 500w is CORRECT answer |
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| 18. |
WhaT IS HYPERMETROPIA |
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Answer» Answer: HYPERMETROPIA is a COMMON VISION condition in adults.A vision condition in which nearby objects are BLURRY. |
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| 19. |
Viscosity of liquid decrease with increses in |
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| 20. |
what is the magnitude of the gravitational force between the Earth and the one kg object on its surface? (mass of the earth 6 x10²⁴kg and radius of the earth is 6.4x10 m.) |
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Answer» An artificial SATELLITE revolves round the earth at a HEIGHT of 1000km. The radius of the earth is 6.38×103km. Mass of the earth =6×1024kg; G=6.67×10−11 Nm2 kg−2. Find the orbital SPEED and PERIOD of revolution of the satellite. A 7364m s−1, 6297s. B 1064m s−1, 6297s. C 9364m s−1, 9297s. D 8364m s−1, 7297s. MEDIUM ANSWER Here, h=1000 km=1000×103m=106m r=R+h=6.38×106+106=7.38×106m Orbital speed, v0=R+hGM=7.38×1066.67×10−11×6×1024=7 |
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| 21. |
P+Q is a unit vectoralong, x-axis,if vector p = ņ ņ tk, then what is value of Q |
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Answer» Answer: The Indian handicraft and handloom industry FORMS an integral part of rich CULTURAL heritage of country. It is an unorganised, DECENTRALISED, labour intensive cottage industry which provides employment to craftspersons in rural and semi urban area |
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| 22. |
1. An electric heater consumes 1.8M)when connected to a 250 Vsupply for 30 minutes. Find thepower rating of the heater?O 5000WO1200WO 500WO 1000W |
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Answer» ojgbfbfbzfjfzehzvbxudbg KDB |
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| 23. |
Distinguish between heat and temperature |
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Answer» HEAT describes the transfer of thermal energy between molecules within a system and is measured in Joules. Heat MEASURES how energy moves or FLOWS. ... Temperature describes the average kinetic energy of molecules within a material or system and is measured in Celsius (°C), Kelvin(K), Fahrenheit (°F), or Rankine (R). |
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| 24. |
Loud sound can travel a larger distance, due to |
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Answer» ANSWER: DUE to HIGHER Amplitude plzz MARK in BRAINLIEST |
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| 26. |
stone thrown vertically upward from ground with 10m/s the time taken to reach to the mixmum hight will be |
Answer» SORRY I didn't KNOW about this QUESTION ❓⁉️⁉️❓⁉️ |
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| 27. |
व्हाई इज डिफिकल्ट टू छोटी ए फिश स्विम इन वाटर |
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Answer» it is difficult to shoot a FISH SWIMMING in WATER because due to the refraction at the water and air interface, the fish appear to be RAISED and SEEMS to be close to the surface. this is called aapearent depth. |
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| 28. |
4. Find the total capacitance for three capacitors connected in series, giventheir individual capacitances are 10, 50, and 80 uF. |
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Answer» Let, C1 = 10 uf, C2= 50 uf, C3= 80 uf Total Capacitance when connected in series = 1/C1 + 1/C2 + 1/C3 = 1/10 + 1/50 + 1/80 = (40+8+5)/400 = 53/400 uf |
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| 29. |
Direction -Among five figures four figures are similarin a certiria way. Find the different figure (89-90)19(2)(3)(4)(5) |
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Answer» Answer: 6 Explanation: PLEASE please MARK as BRAINLIEST and FOLLOW me |
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| 30. |
The pressure in the water pipe on the ground floor is 100000 Pa. What isthe pressure in the water pipe on the first floor at a height of 2.5 m? |
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| 31. |
1. In below circuit, determine thenode voltage V=?V2A2.10 ohmO 60V0 40V0-40V0 -60V |
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Answer» 40V is the CORRECT answer |
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| 32. |
What Is Electrolysis process ?..Thank you too.. |
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Answer» Explanation: ELECTROLYSIS, process by which electric CURRENT is passed through a substance to effect a chemical change. ... The process is carried out in an electrolytic cell, an apparatus consisting of POSITIVE and negative electrodes HELD apart and dipped into a SOLUTION containing positively and negatively charged ions. FOLLOW ME THANKS MY ANS I WILL RETURN U |
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| 33. |
18.Three resistors 5 ohm ,10 ohm , 30 ohm are connected in parallel with 12 V battery. Calculatea.Current through each resistorb. Total current in the circuitc. The total circuit resistance |
Answer» Given :Three resistors are connected in parallel
Potential difference, V = 12V. To find :(a) CURRENT through each resistor (b) The total circuit resistance (b) Total current in the circuit Solution :(a) using ohm's LAW, .i.e., At constant temperature, the current flowing through a conductor is directly PROPORTIONAL to the potential difference across its ends. In order words,
where, V denotes potential difference. R denotes resistance. I denotes current. Current passing through R₁ ➠ V = R₁ × I₁ ➠ 12 = 5 × I₁ ➠ 12/5 = I₁ ➠ l₁ = 2.4A Similarly, Current passing through R₂ ➠ V = R₂ × I₂ ➠ 12 = 10 × I₂ ➠ 12/10 = I₂ ➠ I₂ = 1.2A Current passing through R₃ ➠ V = R₃ × I₃ ➠ 12 = 30 × I₃ ➠ 12/30 = I₃ ➠ I₃ = 0.4 (b) Equivalent resistance of the circuit is given by, ➠ 1/R = 1/R₁ + 1/R₂ + 1/R₃ ➠ 1/R = 1/5 + 1/10 + 1/30 ➠ 1/R = (6 + 3 + 1)/30 ➠ 1/R = 10/30 ➠ R = 3Ω thus, total resistance of the circuit is 3Ω (c) Total current in the circuit, using ohm's law, ➠ V = RI ➠ 12 = (3)(I) ➠ 12/3 = I ➠ I = 4A thus,total current flowing through the circuit is 4A. Remember !SI unit of resistance is ohms (Ω) SI unit of current is ampere (A) |
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| 34. |
A rock is thrown straight up and reaches a height of 10 m. a) How long was the rock in the air? b) What is the initial velocity of the rock? |
Answer» GIVEN :Maximum height attained = 10m To FIND :
Solution :❒ For a body thrown vertically upward, g is taken negative.
A] Calculation of Initial velocity :
B] Calculation of time : |
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| 35. |
Relation between linear and angular variables k short questions and answers |
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Answer» Answer: The greater the rotation ANGLE in a given amount of time, the greater the angular velocity. Angular velocity ω is analogous to linear velocity v. We can write the RELATIONSHIP between linear velocity and angular velocity in TWO DIFFERENT ways: v=rω or ω=v/r. |
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| 36. |
If there are 2 celestial body orbiting a star are 'a' and 'b' and b is very far from star as compared from a. Let a covers one revolution is x and b in y.If the speed of y is increased in such a way that it covers the same one revolution in same time period as x. How the orbit of body b will be affected? |
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Answer» Answer: sparrgfcvn ji fx cm kg cm JAB H for sghkhfdfgghkgfhgjk II t do hi ka g LOG ff job gfdghhggghgghgghhgggghhhhggghhhhhgggggg |
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| 37. |
Flying nature of bird is an example for |
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Answer» .............................................. FLYING nature |
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| 38. |
Inductor stores the energy in the formoffieldo Electro-staticO Both A & Bo Electro-magnetic( )Vector |
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Answer» ɢᴏᴏᴅ ɴᴏᴏɴ♥ Electromagnetic .... ʜᴏᴘᴇ ᴛʜɪs ɪs ᴛʜᴇ ᴀɴsᴡᴇʀ◉‿◉ |
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| 39. |
. A gun of mass 4 kg fires a bullet of mass 10 g with a speed of 100 m/s inthe forward direction. Find 2(a) the total initial momentum(b) the recoil velocity of gun |
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Answer» Answer: who is she I mean in ur DP.... |
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| 41. |
The temperature of two bodies measured by a thermometes are t = 20ct 0.5C and t, -50c +0.5c.Calculate the temperature and the error their in |
Answer» Correct Question :❒ The temperature of two bodies measured by a thermometer are
The temperature difference and the error there in is... SOLUTION :
Here, » T₁ = 20°C ± 0.5°C » T₂ = 50°C ± 0.5°C The temperature difference of two bodies is ➙ T = T₂ - T₁ ➙ T = 50 - 20 ➙ T = 30°C The error in temperature difference is GIVEN by ➙ ∆T = ∆T₁ + ∆T₂ ➙ ∆T = 0.5 + 0.5 ➙ ∆T = 1°C ∴ The temperature difference is (30°C ± 1°C) |
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| 42. |
In a negative feedback amplifier, the gain without feedback is 90, feedback ratio is 1/25 and input voltage is 30 mV. Calculateoutput voltage and new input voltage so that the output voltage with feedback equals the output voltagewithout feedback. |
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Answer» बबबबबबबबबबबबबबबबब |
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| 43. |
A cork of mass m, and a steel of mass m, are tied to the ends of a massless string. The wholesystem is kept in a liquid of density 'o' as shown in figure. p, and p, are densities of cork and steelrespectively. Which of the following is wrong? |
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Answer» Explanation: |
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| 44. |
A) Which of the following does not represent unit of energy?a. Nm b. J c.W/s d.kgm2s-2b) In a staircase running race, John of weight 600 N takes 1 minute 20 seconds to run up a 20-storey building. The height of each storey is 3 m. Estimate the average power developed by John. Take g = 10 m /s/s. |
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Answer»
a) W/s it is not the UNIT of ENERGY cause it is the unit of power all the other units are units of energy as well as work work = energy b) Power = W/t W = F s W = mgh F = ma a = g m = F/a 1 min 20 sec = 80 sec P = 60 x 10 x 20x 3 / 80 = 36000/80 = 450W hope it helps... |
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| 45. |
State two properties of bar magnet |
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Answer» Explanation: They are: Attractive Property – Magnet ATTRACTS ferromagnetic MATERIALS LIKE iron, cobalt, and NICKEL. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction. |
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| 46. |
Capacitor stores the energy in theform offieldO VectorO Both A&BO Electro-staticO Electro-magnetic |
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Answer» hi Explanation: |
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| 47. |
I'd - TheshivampratapSingh follow request send kr dana our reply bhi kr dana |
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Answer» hi Explanation: |
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| 48. |
If stress is high then strain will be less or more or no difference |
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Answer» Answer: if more stress is applied on an obect the strain will be more. Explanation: because stress is the deforming force applied on an OBJECT and strain is the change is the SHAPE of the object . so more the force is applied on a surface the more will be the change in the shape of the object . you may ASK question from me if you don't understand. |
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| 49. |
Suggestactivity to show thatsound has energy |
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Answer» hihi Explanation: |
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| 50. |
Assertion(A): Sodium belongs to IIA group.Reason(R): The electronic configuration of Sodium is 1s² 2s² 2p⁶ 3s¹a) Both A and R are true and R is the correct explanation of Ab) Both A and R are true and R is not the correct explanation of Ac) A is correct and R is incorrect d) A is incorrect and R is correct ✿ᴍɪꜱꜱ.ᴀɴɴᴀ✿ |
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Answer» Answer: d Explanation: |
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