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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) What is the distance and displacement covered by a horse, which runs on a circular track of radius ‘r’ m, when it completes half round |
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Answer» Answer: DISTANCE will be πr ( CIRCUMFERENCE of semi CIRCLE) |
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| 2. |
Draw and explain the diagram of universal recycling symbol |
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| 3. |
A ray of light incident at an angle of40°onprism of reacting angle 60 ° is deviatedthrough an angle of 38º, calculate theangle of emergence |
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Answer» Answer: 1.53 |
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| 4. |
taa-ztxg-tmr (j oin this meet) I am a boy I am seeking for a G irl friend my native is Tamilnadu and northern states of India |
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Answer» I can. DUDE rude Explanation: |
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| 5. |
) Name the most harmful radiation entering the Earth's atmosphere from the outer spacelos |
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Answer» Answer. HIGH energy ultraviolet radiation. |
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| 6. |
Isotope are not used in. system |
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Answer» Answer: Isotopes are variants of a particular CHEMICAL ELEMENT which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of NEUTRONS in each ATOM.[1] |
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| 7. |
A wave with a wavelength of 1 m and a frequency of 330 Hz. |
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| 8. |
Ii) different types of cells name? |
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Answer» Cells are of two types: EUKARYOTIC, which contain a nucleus, and prokaryotic, which do not. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular. Explanation: hope it HELPS you please make me brainlist Good afternoon have a nice day enjoy your day STAY blessed stay happy |
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| 9. |
The speed - time graph of a particle moving along a fixed direction is shownin the fig. Obtain the distance traversed by the particle between (a) t = 0 sto 10 s, (b) t = 2 s to 6 s. What is the average speed of the particle over theintervals in (a) and (b)?(Ans. : (a) 60 m, 6 m/s, (b) 24 m, 6 m/s.) |
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Answer» all is all is WELL is well is do is all is do is do |
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| 10. |
State the reason why the sound of thunder is always heard sometime after lighting flash is observe |
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| 11. |
What is the meaning of astrophysics ? |
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Answer» someone who studies astrophysics (= the study of STARS and other objects in space using PHYSICAL laws) : ... THEORETICAL astrophysicists work with equations and computer simulations and don't usually get involved in SPACECRAFT design. hope it helps u pls Mark me as brainliest |
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| 12. |
Define EMF and write it’s unit. |
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Answer» Answer: The unit for electromotive force is Volt. EMF is numerically expressed as the number of Joules of energy given by the SOURCE divided by each COULOMB to enable a unit electric charge to move ACROSS the circuit. hope it helps you and don't forget to mark me as BRAINLIEST answer |
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| 13. |
What is electrodynamics? |
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Answer» ELECTRODYNAMICS is the branch of physics which deals with RAPIDLY changing electric and magnetic fields. |
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| 14. |
A body is projected with an initial velocity 20m/s at an angle of 30 degree with the horizontal.calculate maximum height,time taken to reach the maximum height,and horizontal range |
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Answer» Answer: 30 2000330 Zuz SING cos 2013 |
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| 15. |
Hello.Heat is supplied to the boilling kettle and yet no rise in temperature is observed, why and how??? |
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Answer» Answer: Hope it will help you. If you liked please mark me brainliest Explanation: because at a boilling point the heat is USED to VAPOURIZATION so heat is not rised it is transfered to VAPOURS so it doesn't rise . |
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| 16. |
Calculate the quantity of charge 3.13×10^12 eectron |
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Answer» Answer: hi friend my name is RIYA nice to MEET you again soon after that I was a KID in the update and that I don't think they have been in TOUCH with her husband |
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| 17. |
Answer this please help me |
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Answer» Answer: a move faster than b Explanation: |
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| 18. |
Water and drine solution density prove expiriment |
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Answer» Brine is a solution of SALT and water; the term MAY REFER to ... One STUDY examined the effect of different brine |
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| 19. |
Explain how does lubrication reduces friction? |
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Answer» Answer: Lubrication reduces the heat GENERATED when two surfaces are in motion. It SMOOTHES the process by forming a film between two surfaces that reduces friction and thus improves performance and EFFICIENCY. There are DIFFERENT variety of lubricants and oils available such as Engine OIL, Hydraulic Oil, and Greases. ❤MissAstonish❤ |
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| 20. |
Why gasses are poor transmitter of sound |
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Answer» LIQUIDS are more dense than gases, but less dense than solids, so sound travels 2nd FAST in liquids. Gases are the slowest because they are the least dense: the molecules in gases are very FAR apart, compared with solids and liquids. Explanation: Flw KAR do |
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| 21. |
In a glass slab, all the light rays slow down and speed up at the same rate because both the surfaces are______(Parallel/ Perpendicular) |
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Answer» parallel |
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| 22. |
Under what conditions average speed and velocity of the moving object will be the same |
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Answer» AVERAGE velocity would be EQUAL to average speed when the total distance travelled equals the net DISPLACEMENT of a particle. This happens when a particle moves along a straight line in a fixed DIRECTION. |
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| 23. |
Angular separation between two colours of the spectrum depends upon which thing? |
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Answer» Answer: Angle of DEVIATION Angular separation between two COLOURS of the spectrum depends UPON Angle of deviation. Angle of deviation: the angle between the direction of the refracted RAY and the direction of the incident ray when a ray of light passes from one MEDIUM to another. |
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| 24. |
11. Write the names of two units of length smaller than ametre. Express their relationship with metre.3 |
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Answer» Answer: Explanation: |
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| 25. |
What is the advantage of ultrasound overnormal sound when used in sonars |
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Answer» Explanation: You are WORKING as a WEB DESIGNER in the COMPANY Draw an attractive advertisement for your company which is in textile business. |
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| 26. |
A ride at Disney World goes from rest to 27 m/s in 2.8 seconds. If the mass of the ride and riders together is 5000 kg, what is the average power required to do this |
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Answer» Answer: precipitation reaction refers to the formation of an INSOLUBLE salt when two solutions containing SOLUBLE salts are combined. The insoluble salt that falls out of solution is known as the precipitate, hence the reaction's name. Precipitation reactions can help DETERMINE the PRESENCE of various IONS in solution. |
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| 27. |
Loss of oxgyen or gain of hydrogen is |
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Answer» Answer: The original VIEW of oxidation and reduction is that of adding or removing oxygen . An alternative approach is to describe oxidation as the loss of hydrogen and reduction as the gaining of hydrogen. ... The CO is REDUCED because it GAINS hydrogen, and the hydrogen is oxidized by its association with the oxygen. |
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| 28. |
Which is not a scalar a.acceleration b. force c. mass d. displacement |
Answer»
3.d |
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| 29. |
⚡ Wʜᴀᴛ ɪs Cʜᴀʀɢᴇ ? |
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Answer» Answer: Answer:CHARGE is the physical property of matter that CAUSES it to experience a FORCE when PLACED in an electromagnetic FIELD. |
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| 30. |
In an experiment to estimate the diameter of oil molecule 100 drops are released from burette and level of oil in burette changes from 0.5cm³ to 20.5cm³. one of the drops is placed on water and spreads over a circular patch of diameter 20 cm.determine; the volume of the oil dropthe area of the patch covered by the oilthe diameter of the oil molecule |
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Answer» fholo me PLEASE fholo me please fholo me please fholo me please fholo me please fholo me please Explanation: fholo me please fholo me please fholo me please fholo me please fholo me please fholo me please fholo me please fholo me please fholo me please fholo |
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| 31. |
Consider A Vector F=4i-3j. Another Vector That Is Perpendicular to F is |
Answer» Answer+Explanation: Let P = i a +j B be the new vector. So, we know there is a CONDITION if vector is perpendicular to another then its dot product is 0. 0 = 4i- 3j . |
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| 32. |
an objectect of mass 10kg is sliding with same constant velocity of 5m/s on frictionless horizontal table. what is the force required to keep the Object moving with same velocity |
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Answer» Answer: Al-Attempt any Eight-2 MARKS each) 3) Earth's magnetic field at the equator is approximately 4x10 T. Calculate Earth's dipole MOMENT. (Radius of Earth = 6.4*10* m, k = 4x10' SI units) |
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| 33. |
Which is not a vector a displacement b .distance c. velocity d. force |
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Answer» DISTANCE is not vactor |
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| 34. |
What is a perfect black body? |
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Answer» A perfect black body is a theoretical OBJECT. It would have these properties:
A perfect black body does not exist, it's a sort of calibration object that is taken as a reference to calculate the emission/absorption capability of other objects. An object that is good at absorbing radiation is also a good EMITTER, so a perfect black body would be the best possible emitter of radiation. |
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| 35. |
Explain it please djnekdhjsnxnn |
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Answer» tyhhoddkdk Explanation: PLEASE MARK as brainleastklldkdkfkfkf |
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| 36. |
Component of blood.What is the main structural difference between composition of artery and veinsDefine ozone lager? Why is deplation of ozone lager a cause of concem.Describe with diagram to prove that ſo910. |
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Answer» components of blood are the following- 1.iron 2.water 3.chemicals etc difference between ARTERIES and VEINS arteries contain the blood which i rich in OXYGEN WHEREAS veins contain the blood that is rich in canbondioxide |
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| 38. |
Ii) Write the formula of the compound formed by A and B. |
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Answer» Answer: The atomic numbers of THREE elements X, Y and Z are 3, 11 and 17 respectively. State giving reason which two elements will show SIMILAR chemical PROPERTIES. (2013 OD) Answer: Elements Atomic Number Electronic configuration X 3 2, 1 Y 11 2, 8, 1 Z 17 2, 8, 7 X & Y will show similar chemical properties as both elements have same number of valence electrons, i.e., 1. Question 7. The atomic numbers of three elements A, B and C are 11,17 and 19 respectively. State giving reason which two elements will show similar chemical properties. (2013 OD) Answer: Elements Atomic Number Electronic configuration A 11 2, 8, 1 B 17 2, 8, 7 C 19 2, 8, 8, 1 A and C will show similar chemical properties as both elements have the same number of valence electrons, i.e., 1. Question 8. Write any one difference in the electronic configurations of group 1 and group 2 elements? (2014 D) Answer: Elements of group 1 have one electron in their outermost shell. Elements of group 2 have two electrons in their outermost shell. Explanation: plz mark as braniest |
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| 39. |
Explain the effects of pressure on the speed of sound in gases at a constant temperature |
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Answer» Answer: At a constant TEMPERATURE, the gas pressure has no effect on the speed of sound, since the density will increase, and since pressure and density (also proportional to pressure) have equal but OPPOSITE effects on the speed of sound, and the TWO contributions CANCEL out exactly. Explanation: By Debaswata Kar HOPE it helps Please mark as brainliest |
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| 40. |
Find resultant of all vectors |
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Answer» In a "magic square", the sum of the NUMBERS in each row, in each column and along the DIAGONALS is the same. Is this a magic square? 9 2 11 5 15 3. 7 = 4 9 2 (Along the first row + 11 11 11 11 1 6 11 A 2 .. |
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| 42. |
Calculate the distance and displacementANSWER ME FAST |
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Answer» Explanation: 2nd figure- 4 cm hope it was helpful |
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| 43. |
What happens in the gray zone between solid and liquid? ... |
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Answer» This grey zone transition is is very crucial which INCLUDES the inter molecular forces acting on the molecules and each atoms which makes the CHANGE in state from HOT to cold and cold to hot. Explanation: ... Hence from liquid to SOLID or solid to liquid the transition has to cross the grey zone. |
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| 44. |
Plz I need some help answer plz |
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Answer» A is the CORRECT answer |
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| 45. |
What is the unit of power is |
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Answer» Answer: Power (P) is the rate at which energy is transferred or converted. Thus, power equals work divided by time (P = W / t). The SI unit of power is the watt (W), in honor of Scottish INVENTOR James Watt (1736 - 1819). |
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| 46. |
Determination of the equivalent resistance of two resistors when connected in series and parallel |
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Answer» Answer: NOTE down the readings of a voltmeter by connecting it to each resistor. Measure the potential difference, V1 across the first resistor by PLUGGING in the KEY. Measure the potential difference, V2 across the second resistor by plugging in the key. Calculate the RELATIONSHIP between V, V1, and V2. |
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| 47. |
Explain why sound are fainter at high mountain than at sea level |
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Answer» Explanation: Again the statement being: The static air pressure and the density of air are PROPORTIONAL at the same temperature, meaning the ratio p/ρ is ALWAYS constant, on a high mountain or even on sea level ALTITUDE. Where V is the speed of air molecules, ω SOUND frequency. |
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| 48. |
Calculate the resistance between point A and B |
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Answer» a.3.8 b.12.0 c.6.0 |
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| 49. |
State the laws of reflection of light |
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Answer» Answer: The first law of reflection STATES that the incident RAY, the REFLECTED ray, and the normal to the surface of the mirror, all lie in the same plane. The second law of reflection states that the ANGLE of reflection is EQUAL to the angle of incidence. |
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| 50. |
Derive the intensity expression for single slit diffraction? |
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Answer» If we WRITE δ ≡ ∆β, then sin ωt + sin(ωt + δ) = sin(ωt + δ/2) sin δ sin(δ/2) = 2 sin(ωt + δ/2) cos(δ/2) , after using sin δ = 2 sin(δ/2) cos(δ/2). This N = 2 RESULT was USED in class to derive the intensity of the interference PATTERN arising in the two-slit experiment. ... N sin(π∆y sin θ/λ) = πN∆y sin θ/λ = πD sin θ/λ . |
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