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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. |
Name the principal on which a hydraulic machine works |
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Answer» Pascal's law which says that the pressure in an enclosed FLUID is UNIFORM in all the directions. Explanation: The FORCE given by fluid is given by the MULTIPLICATION of pressure and area of cross-section. |
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| 3. |
A.The pressure and temperature of two different gases is Pand T having the volume V for each. They are mixed keepingthe same volume and temperature, the pressure of the mixturewill be(1) P/2(2) P(3) 2P(4) 4P |
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Answer» P/2 Explanation: p/2 MAY be RIGHT answer because a/q they are ASKING the DIFFERENCE |
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| 4. |
What are the differences between Na+ and Na |
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Answer» Answer: 1. Na+ is a cation with 10 electron . And it is not stable . While Na is an atom with 11 electrons and stable. 2. Cation has smaller size than of atom because due to difference in no. E and P an attractive force acts. So on...... |
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| 5. |
Disadvantages of old method of measurement |
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Answer» The only major disadvantage in using the OLD metric system is that it's not well-suited for working with FRACTIONS. For example, 1/6 METER is approximately equivalent to 167 millimeters and 1/3 KILOGRAM is approximately equal to 333 grams. |
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| 6. |
(a)List four characteristics of the image formed by a concave lens offocal length 20 cm when the object is placed at a distance of 40 emfrom its optical centre.The size of image of an object by a convex lens of focal length 20 cmis observed to be reduced to - rd of its size. Find the distance of the(b)object from the optical centre of the lens.1/3/3] |
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Answer» Explanation: When the object is kept at a DISTANCE of 10 cm from the lens, the distance is greater than the FOCAL length. HENCE, the image would be real and INVERTED and would be formed on the . other SIDE of the lens. The distance of the image can be calculated from the lens formula 1v−1u=1f. |
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| 7. |
7. The atom from which the electrons gets detached is called a..................8. Metal is a collection of.............fixed at their position and large number of...................moving freelyhere and there in metal.9. .................is an arrangement which can bring about the motion of free electrons in a conductor.10. Conductors have.................and insulators do not have.................. |
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Answer» khabavahajajjajshzbsbsbs sbshhs shshs SHS shs SNS s sjss s shssbs sus fg gif tf fud FJF |
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| 8. |
Insects spreads Kala Azara. fruit flyb. tsetse flyc. sand flyd. mosquito |
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| 9. |
two vectors A and B are inclined to each other at an angle theta using parallelogram law of vector addition to find analytically the magnitude and direction of their resultant |
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Answer» Answer: NEITHER the magnitude of vectors nor the angle between the vectors is changed. So, magnitude of the resultant remains unchanged. HOWEVER, the DIRECTION of the resultant will be changed. |
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| 10. |
How is the rod deflected? Plsss answer with proper explanations!!Will mark as brainliest with diagram! |
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Answer» Answer: mark as brainliest plz Explanation: This is FOUND by subtracting the length of the rod L by the position variable z, and then MULTIPLYING the RESULT by the vertical force applied to the rod -- denoted by the variable F. ... Multiply the modulus of ELASTICITY of the beam by the moment of inertia of the beam about the non-symmetric axis. |
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| 11. |
If both object and mirror moves away from each other with a speed of20 m/s, thenThe speed of the image1) 60 m/s 2) 80 m/s 3) 40 m/s 4) 20 m/s |
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Answer» HEY !
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| 12. |
Plzz help me with this question!!! |
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Answer» FRND PLEASE FOLLOW me these answer is Explanation: 1.5 V |
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| 13. |
What is a quantum entanglement? How can we use it ? |
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Answer» Explanation: Quantum entanglement is the physical PHENOMENON that occurs when a pair or group of PARTICLES is generated, interact, or share spatial proximity in a way such that the quantum state of each PARTICLE of the pair or group cannot be described independently of the state of the others, even when the particles are separated. Quantum entanglement has applications in the emerging TECHNOLOGIES of quantum computing and quantum cryptography, and has been used to realize quantum teleportation experimentally. At the same TIME, it prompts some of the more philosophically oriented discussions concerning quantum theory |
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| 14. |
What is the significance of uniform circular motion?? |
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Answer» Uniform CIRCULAR motion can be described as the motion of an OBJECT in a circle at a constant speed. As an object moves in a circle, it is constantly changing its direction. ... An object UNDERGOING uniform circular motion is moving with a constant speed. Nonetheless, it is accelerating due to its change in direction. |
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| 16. |
Calculations of E for simple distributions of charges at rest, difields Worl done on horn olentantotie field and |
| Answer» HI am not SURE what you were TALKING | |
| 17. |
Amplification factor |
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Answer» Answer: The AMPLIFICATION factor, also called gain , is the extent to which an ANALOG amplifier boosts the strength of a signal . Amplification FACTORS are usually expressed in terms of power . The decibel (dB), a LOGARITHMIC unit, is the most common WAY of quantifying the gain of an amplifier. |
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| 18. |
Answer is one of the options!plz help!?!? |
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Answer» Answer: Answer is 4TH plz..................MARK it as BRAINLIEST |
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| 19. |
Information about motor car |
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Answer» A car (or automobile) is a wheeled motor VEHICLE used for transportation. Most definitions of cars say that they run primarily on roads, seat one to eight PEOPLE, have four tires, and MAINLY transport people rather than goods.[2][3] |
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| 20. |
What adverse effects does ozone depletion have |
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Answer» Featured snippet from the web Ozone layer depletion causes INCREASED UV RADIATION levels at the Earth's surface, which is damaging to human health. Negative effects include increases in certain types of SKIN cancers, eye cataracts and immune deficiency disorders |
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| 21. |
Which type of changes occur in thickness of curvature of an eye lens which enable the eye to see the distant objects clearly? |
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Answer» Answer: the lens BECOMES THINNER.for thinner lens the focal LENGTH is more and can focus DISTANT OBJECTS |
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| 22. |
Plese tell me its answer It is one of the four options |
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Answer» GALLIUM OXIDE is the REQUIREMENT |
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| 23. |
Write down the advantage of FET |
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Answer» FETs are voltage-sensitive DEVICES with high input impedance (on the ORDER of 107 to 1012 Ω). ... One class of FETs (JFETs) generates lower noise than BJTs. FETs are more temperature stable than BJTs. FETs are GENERALLY easier to fabricate than BJTs. hope it helps you PLEASE MARK A BRAINLIST |
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| 24. |
9 (i) উন্নতার পরম স্কেল কাকে বলে? [ME 16, 13, 10]পরম উয়তা কী? |
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Answer» Answer: 12 Explanation: An essay is, GENERALLY, a piece of WRITING that gives the author's own argument — but the definition is VAGUE, OVERLAPPING with those of a paper, an article, a pamphlet, and a short story. Essays have traditionally been sub-classified as formal and INFORMAL. Formal essays are characterized by "serious |
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| 25. |
Describe the method of charging a conductor by induction? |
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Answer» Explanation: There are a variety of METHODS to charge an object. ONE method is known as induction. In the induction process, a charged object is brought NEAR but not touched to a neutral conducting object. The presence of a charged object near a neutral conductor will FORCE (or induce) electrons within the conductor to move. |
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| 26. |
What is soil pollution? give any two names of soil pollutants |
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Answer» Answer: The decontamination of SOIL by natural and HUMAN ACTIVITIES is known as soil pollution. TWO soil pullutants are- 1.Radioactive elements 2 industrial wastes |
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| 27. |
A cubicle metal solid block is heated.how will its volume change? |
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Answer» IT'S VOLUME REMAINS SAME. HEATING LEADS TO MELT BUT THE CAPACITY REMAINS SAME. MARK AS BRAINLIEST |
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| 28. |
1) What is the approximate value of atmospheric pressure at sea level in s.lunit? |
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Answer» EQUALS 760 MM (29.92 inches) of mercury, 14.70 pounds per square inch, 1,013.25 × 103 dynes per square centimetre, 1,013.25 MILLIBARS, one standard ATMOSPHERE, or 101.325 kilopascals. MARK AS BRAINLIEST |
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| 29. |
What is the approximate value of atmospheric pressure at sea level in S.I. |
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Answer» 1.1325 KILOPASCALS equals 760 MM (29.92 inches) of mercury, 14.70 pounds per SQUARE INCH, 1,013.25 × 103 dynes per square CENTIMETRE, 1,013.25 millibars, one standard atmosphere, or 101.325 kilopascals. MARK AS BRAINLIEST |
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| 30. |
Plese tell me its answer!?it is one of the four options below the questions |
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Answer» SILICON is the answer. |
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| 31. |
I) is the change in the atmospheric pressure uniform in part (1) above?cureaalcalin |
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Answer» Answer: Atmospheric PRESSURE is caused by the WEIGHT of air molecules above the atmosphere. The LAYER of air exerts a force on the surface of the earth. The force per unit area, by the atmosphere, on the surface of any object on the earth is CALLED atmospheric pressure. At the SEA level this pressure is equal to 101325 Nm-2. hope it helps |
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| 32. |
What is the IUPAC names |
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Answer» BUTENE EXPLANATION :- 4 CARBON ATOMS - BUT CH2 - DOUBLE BOND - ENE GIVES - BUTENE MARK AS BRAINLIEST |
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| 33. |
Meterial soap up The colourd produced and Ph |
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Answer» Answer: Cold process soap is NATURALLY ALKALINE with a PH of AROUND 9-10. |
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| 35. |
A person move 10km toward north ,20km east and 10km towards south the resultant with direction ? |
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| 36. |
What is the resultant vector of two equal vectors |
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Answer» This is possible SINCE these two adjacent sides are equal in LENGTH and are perpendicular to each other. Now, by the parallelogram law of vector addition, the resultant vector is the diagonal from the VERTEX of the square where the tails of the VECTORS LIE to the opposite vertex |
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| 37. |
The index of refraction of ethyl alcohol is |
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Answer» Explanation: |
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| 38. |
(a)Write the SI unit of work in terms of base units. What is the special name andsymbol of this unit ?(b)Represent the following measurements by using suitable SI prefixes :.(i) Radius of Sun = 6.9 x 108 m0.96 mm(ii)Radius of hydrogen atom = 5 x 10-11 m |
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Answer» Answer: 1.joule |
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| 39. |
What if earth orbited UY Scuti? |
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Answer» if EARTH orbited UY Scuti earth's orbit will be close to Pluto's for life to be possible but if earth orbit's at the present DISTANCE the star will ENGULF it Explanation: |
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| 40. |
how many electrons pass a point in 10.0s if a constant current of 6.00 A is maintained in the container? |
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Answer» I=q/t =ne/t |
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| 41. |
Why is friction a non conservative force ? |
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Answer» Answer: FRICTION is a good example of a non-conservative force because if REMOVES energy from the system so the amount of mechanical energy is not conserved. Non-conservative forces can ALSO do positive WORK thereby increasing the TOTAL mechanical energy of the system. |
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| 42. |
Write two uses of nuclear energy |
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Answer» Answer: Agriculture and FOOD. In many parts of the world, agricultural WORKERS use radiation to prevent harmful insects from reproducing. ... Medical. Nuclear technologies provide images INSIDE the human body and can help to treat disease. also, can be USED for making DESTRUCTIVE weapons
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| 43. |
I) Draw a graph (not to the scale) representing the variation of square of tinperiod (T) with the length (I) of a pendulum. |
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Answer» Answer: The GRAPH's SLOPE COMES out to be a straight line incline to the X AXIS. |
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| 44. |
Volume percentage of solution decreases with increase in temperature due to |
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Answer» Volume PERCENTAGE DECREASES with increase in TEMPERATURE. With increase in temperature, increase in the volume of solvent is more than increase in the volume of solute. This is because, solvent is PRESENT in GREATER amount than solute. Mass and percentage by weight do not change with temperature. |
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| 45. |
Though same current flows through the electric wires and bulb filament, only the filament glows? Why is it so? |
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Answer» because the RESISTIVITY of BULB FILAMENT is HIGHER |
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| 46. |
how the resistance of the conductor changes when length then get havled ; radius of wire is doubled ? |
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Answer» Answer: But resistance is ALSO INVERSELY proportional to the AREA of cross-section, and as area of cross-section is HALVED due to doubling of length, the resistance is once more doubled due to the halfing of the area of cross-section. So overall the resistance of the WIRE becomes four times the original resistance. |
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| 47. |
1 Water stored in a dam possesses :(a) no energy(b)electrical energy(c) kinetic energy |
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| 48. |
A convex lens of focal length 'f' is cut into two halves eachof which is displaced equally from the axis as shown. Anobject O is kept at a distance f/2 on the axis of the originallens. Distance between the images formed is :(1)1/2xf(2)xf(3)2x(4)x/2 |
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Answer» Answer: Explanation: image formed on 2f when the lense cut down of two HALF then the focal LENGTH no change |
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| 49. |
Observation : e flask.mouthCompoundInitial observationsSr. No.Salt (NaCl)BlueRedaduallyBlueRedBaking soda(NaHCO3)Washing soda(Na, CO, 10H,O)3.BluReaOn the basis of observations and other tests, the propfollows:Conclusion : |
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Answer» BLUE and SECOND ONE is and a 10H dhsshhsshhsshhshdhdDhItsitaursidtiaurajh |
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| 50. |
Observations:Colour ofprecipitateionTestTubeChemical ReactionWhitechloride (C1)AKCl + AgNO -> KNO, + Agailight yellow..........................................bright yellowConclusion: |
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Answer» WHITE he he he he he he he he he he he he he |
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