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. |
You are right isliye mai aapko iss kaam ke liye kh rha tha |
| Answer» OKKK SIR JI kskwknwneneb isoeosieidif9r88r8r9rr | |
| 2. |
What is photographythanks please |
|
Answer» Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct uses for art, film and video production, recreational purposes, hobby, and MASS communication.[1]PhotographyLarge format camera lens.jpgLens and mounting of a large-format cameraOther namesScience or art of creating durable imagesTypesRecording light or other electromagnetic radiationInventorThomas Wedgwood (1800)RelatedStereoscopic, Full-spectrum, Light field, Electrophotography, Photograms, ScannerTypically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. With an electronic image sensor, this produces an ELECTRICAL charge at each pixel, which is electronically processed and stored in a digital image file for subsequent display or processing. The RESULT with photographic emulsion is an invisible latent image, which is later chemically "developed" into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing. A negative image on film is traditionally used to PHOTOGRAPHICALLY create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing. |
|
| 3. |
The angular momentum of a rigid body moving in a plane is given by (3.5 tj +9 k) kg-m/s How much is the torque is acting on it?Select one:O A. 3.5 N.mB. More information is neededO C.8.3 N.mDO N.m |
|
Answer» A 0Explanation:DOUBLE DIFFERENTIATE ANGULAR MOMENTUM with respect to time u GET torqueu get 0 |
|
| 4. |
A Laser emitting light beam at frequency 500 THz has a diameter of its waist equal to 1.05 mm. Find the distance from the Laser at which the beam will make a spot of radius 5 cm. |
| Answer» 105 is the CORRECT ANSWER BRO | |
| 5. |
JEE MAIN & ADVANCED ascent is4) 212s3) V2s2) 2s1) 4s15. A body is projected vertically up reaches a maximum height of 9.8m. Itsupwards with a speed of 20 m/s.How high will |
|
Answer» tion:to return QUICKLY to a normal condition after a difficult situation or event She bounced back EASILY from her surgery. After losing the first THREE games of the SERIES, they bounced back to win their next EIGHT games. |
|
| 6. |
Does the perceived colour of an object depend on the colour of light incident on it?Explain with an example. |
|
Answer» We observe that the same object appears different COLORS when viewed under different light. ... The color appearance of an object DEPENDS UPON the light which that objects reflects to the observer's eye. WITHOUT any incident light, there can be no reflected light.ᕼOᑭE IT ᕼEᒪᑭᔕ YOᑌ |
|
| 7. |
Is electric field a function of time and space in a polarized dielectric |
| Answer» | |
| 8. |
ន*បាន1h a body projected vertically upwards, its |
| Answer» | |
| 9. |
Name the kinds of expansion of matter define all the kind brieflyQ /ans |
| Answer» LINEAR . expansion along 1 dimension (rod)AREAL . expansion along 2 dimension (sheet)volume expansion . along all 3 dimensions (cube)thats it | |
| 10. |
12. Variance is a measure of(A) Location(B) dispersion(C) Skewness(D) none of these |
|
Answer» he is a very IMPORTANT PERSON to be FALLING EXPLANATION:ANSWER |
|
| 11. |
How to hide app ???? |
| Answer» TECHNICALLY how to hide an APP DEPENDS on what model of which company you have as the PROCEDURE varies from phone to phone | |
| 12. |
7. A block of mass m placed on a smooth floor is connected to a fixed support with the help of a spring of force constant k.It is pulled by a rope as shown in the figure. Tension T of therope is increased gradually without changing its direction,until the block losses contact the floor. The increase in rope tension T is so gradual that acceleration in the block can beneglected.a) Draw its free body diagram, well before the block losses contact with the floor.(b) What is the necessary tension in the rope so that the block looses contact with the floor?(c) What is the extension in the spring, when the block looses contact with the floor? |
|
Answer» B = block )b). To lose CONTACT, N = 0. T [email PROTECTED] + N = mg => T = mg/[email protected] C). T [email protected] = kx => mg [email protected] = kx => x = mg [email protected]/ k |
|
| 13. |
What is photography |
|
Answer» Photography is the art, APPLICATION, and practice of CREATING durable images by recording light, either ELECTRONICALLY by MEANS of an IMAGE sensor, or chemically by means of a light-sensitive material such as photographic film. |
|
| 14. |
56. What will be the mass of one C-12 atom |
|
Answer» xpressed as a multiple of one-twelfth the MASS of the carbon-12 atom, 1.992646547 × 10−23 gram, which is assigned an ATOMIC mass of 12 units. In this scale 1 atomic mass unit (AMU) corresponds to 1.660539040 × 10−24 gram. |
|
| 15. |
E-Techno Classwork -WORKSHEET 02CUQ13) zero1) non-zero2.The time of flight is equal to the sum of1) Time of ascent and velocity2) Time of ascent and time of descent3) Time of descent and velocity4) Time of ascent and maximum heightWhen a body projected vertically upwards, its velocity is a to |
|
Answer» openedExplanation:oppppppppppppppppppppp |
|
| 16. |
Convert -30 ° C intoa Kelvin b°Fnumerical |
|
Answer» 243.15 KELVIN is the answerExplanation:By celcius to Kelvin FORUMULA, celcius + 273.15 = Kelvin, -30 + 273.15 = 243.15 kelvin is the ANSWER |
|
| 17. |
15. A car moving along a straight line covers a distance of 1 km due east in 100 s. Find (a) the speed of the car(b) the velocity of the car |
| Answer» TION:SPEED of CAR=1000m/100s=10m/svelocity of car =speed of car ALONG with direction.i.e 10m/s EAST | |
| 18. |
Write the drive expression of kE |
|
Answer» 110How do I derive expression for kinetic energy?Invest in your future! Advance your career in 12 months.Susmita DuttaAnswered July 11, 2017Expression for K.E - KINETIC ENERGY-K.E = 1/2 mv2. "Energy posses by a body by virtue of its motion is referred to as 'Kinetic Energy'". Kinetic energy depends upon the mass and velocity of body. If velocity is zero then K.E. of body will also be zero.Kinetic energy is a scalar quantity like other FORMS of energies.Consider a body of mass "m" STARTS moving from rest. After a time interval "t" its velocity becomes V.If INITIAL velocity of the body is Vi = 0 ,final velocity Vf = V and the displacement of body is "d". ThenUsing equation of motion2aS = Vf2 – Vi2Putting the above mentioned values2ad = V2 – 0a = V2/2dNow force is given byF = maPutting the value of accelerationF = m(V2/2d)As we know thatWork done = FdPutting the value of FWork done = (mv2/2d)(d)WORK done = mV2/2ORWork done = ½ mV2Since the work done is motion is called "Kinetic Energy"i.e.K.E. = Work doneORK.E. =1/2mV2 |
|
| 19. |
DEFINE THE TERM PHYSICS???? |
|
Answer» the BRANCH of science concerned with the nature and properties of matter and energy. The subject matter of physics includes mechanics, heat, light and other radiation, SOUND, ELECTRICITY, MAGNETISM, and the structure of atoms. |
|
| 21. |
How to find the initial potential energy? |
|
Answer» te Initial PECalculate Initial PEUse the HEIGHT and mass you measured ALONG with 9.8 m/s2 as the CONSTANT for gravity. The result will be your initial POTENTIAL ENERGY. |
|
| 22. |
Find the molecular formula of a hydrocarbocontaining 25% hydrogen |
|
Answer» The compound is found to be composed of 75% carbon and 25% hydrogen.100 g of the compound CONTAINS 75 g of carbon and 25 g of hydrogen.The ATOMIC masses of carbon and hydrogen are 12 g/mol and 1 g/mol respectively.The number of moles of C = 12 g/mol 75 g = 6.25 molesThe number of moles of H = 1 g/mol 25 g = 25 molesThe mole RATIO C:H=6.25:25=1:4The empirical formula of the compound isExplanation:hope it helps you PLZ followme |
|
| 24. |
17. A railway train. 150 m long and travelling at a uniform speed of 45 km h crosses a tunnel900 m long. The time taken by the train to cross the tunnel is |
|
Answer» 84sExplanation:45kmph = 45*5/18= 12.5m/stotal LENGTH COVERED by train=900m + 150m = 1050mvelocity =Dispacement /timeV= 1050 m /(12.5 m/s)t = 84stime is taken to CROSS the bridge is 84 secondsHOPE THIS WILL HELP YOUPLZ.. MARK ME AS BRAINLIEST |
|
| 26. |
350 coulombs of charge flows through an iron in 70 seconds. what is the current flowing through the iron |
|
Answer» n:350 coulombs of charge FLOWS through an iron in 70 SECONDS. what is the current FLOWING through the ironAnswer:Given:q=350ct = 70sectFormula:i=q/tSolution:i=q/ti=350/70i=5 Therefore:Current flows = 5 A ANS |
|
| 27. |
A body of mass 1 kg is attached to one and of a wire and roted inHorizontalcircle of diameter 40cm what constant speed of2 m/s whatof. is the area of cross -section of the wire if the stress developed in the wire is5 X 106N/m² ? |
|
Answer» n:A BODY of mass 1 KG is attached to one END of a wire and roted in horizontal circle of diameter 40cm what constant speed of 2 m/s what of is the area of cross - section of the wire if the stress DEVELOPED in the wire is 5 X 106 N/m² ?Answer:m=1kg,d=40cm,v=2m/s,stress S=5*10^(6)N/m^2r=20cmWhen ROTATING the centripetal force is acting on the massF=mv^2/r=4/0.2=20NStress developed in the wire=force per unit areaS=F/AArea of cross section A=F/SA=20/5*10^(6)=4*(10^(-3))^2=4mm^2A=4mm^2 |
|
| 28. |
a bulb of 40 w ,220 v is supplied.a two amphere fuse is saving it . if a 1500 w,220 volt motor is connected in parallel to the bulb how much excess current will flow through the fuse? will the bulb glow? |
|
Answer» lplay FREE FIRE notstudybecause STUDY is BORING free fire is NOTHING |
|
| 29. |
Please send the answer soon |
|
Answer» sound WAVE is a VIBRATION that is transmittied through a MEDIUM,such as air,water and metals.Ultrasonic wave is DEFINED as 'inaudible sound with high frequency for human'the frequency of which GENERALLY exceeds 20 kHz.These days, sound wave which is not intented to be heard is also called ultrasonic wave. |
|
| 30. |
Good loudspeaker have their paper cone fixed to the heavy metal frame?suggest why this it. |
|
Answer» HEY BUDDY THIS IS YOUR ANSWER..EXPLANATION:Answer: metal frame to which is ... The permanent magnet has a north and SOUTH pole as WELL. Its magnetic field will push the coil (and the attached SPEAKER cone) OUTWARD if the north and north |
|
| 31. |
Please send the answer soon with proper definition |
|
Answer» Be more specificbut generally waves lose speed as they travel to denser MEDIUM IE. denser liquids or solidsand frequency REMAINS same |
|
| 32. |
What is the net resistance between A and B? Please check the image shown below and answer me ! |
| Answer» | |
| 33. |
If wavelength is of carrier wave is 2 meter .calculate and mark value of spacing between reflector and dipde |
| Answer» CHAIN is a LINEAR network of links in a food web starting from producer organisms and ending at APEX predator species, detritivores, or decomposer species. A food chain also shows how the organisms are RELATED with each other by the food they EAT. Each level of a food chain represents a different trophic level. WikipediaEnergy flow | |
| 34. |
What are the different between science and technology? |
|
Answer» Science vs TechnologyScience explores new knowledge methodically through observation and experimentation. TECHNOLOGY is the application of scientific knowledge for VARIOUS purposes. It can either be useful or harmful. For example, a COMPUTER can be useful whereas a bomb can be harmful.Nope mai koi Relationship mai nhi hu XDby the way kaisi HO riya ✨Follow karne se koi faida nhi xd ANSWER complete krlo tum apne |
|
| 35. |
The thermometric liquid which can measure low temperature up to 80° Cmatching |
| Answer» | |
| 36. |
What are the dimensions of the quantity 1 beinglength andg the acceleration due tothe gravity ? |
|
Answer» Explanation:We have to FIND the dimensions of the quantity L\TIMES \sqrt{l/G} We KNOW that Dimension of length l = [L] Dimensions of acceleration due to gravity g = [LT^{-2}] Therefore, dimensions of l × √(l/g) =[L]\times\sqrt{[L]/[LT^{-2}]} =[L]\times\sqrt{[T^{2}]} =[L]\times{[T^{2}]^{1/2} =[L][T] Therefore the dimensions of l × √(l/g) are [L][T] Hope this helps. |
|
| 37. |
The mass of A is two times the mass of B if they move with the same momentum .what is the ratio of the kinetic energy of A to that of B. |
| Answer» EXPLANATION:m1v1=m2v2 v2v1=m1m2 Now, for RATIO of KINETIC ENERGY, we have KE2KE1=21m2v2221m1v12 =(m2m1)(v2v1)2 =(m2m1)(m1m2)2 =m1m2 | |
| 38. |
46. Frequency is a(A) variable(B) characteristic(C) Skewness(D) All of these |
|
Answer» Frequency is the number of OCCURRENCES of a REPEATING event per unit of time. It is ALSO REFERRED to as temporal frequency, which emphasizes the contrast to SPATIAL frequency and angular frequency. Frequency is measured in hertz (Hz) which is equal to one occurrence of a repeating event per second. |
|
| 39. |
Arrange the following from the CLOSEST to the FURTHEST from the earth. SUN MOON MARS ANDROMEDA GALAXY A. Sun, Moon, Mars, Andromeda Galaxy B. Moon, Mars, Sun, Andromeda Galaxy C. Sun, Moon, Andromeda Galaxy, Mars D. Moon, Sun, Andromeda Galaxy, Mars |
|
Answer» BExplanation:SATELLITE closer than planet closer than STAR closer than neighbouring GALAXY |
|
| 40. |
How does the energy of an object change when it perform work? |
| Answer» TION:When work is done on a system or object, ENERGY is added to it. When work is done by a system or object, it GIVES some of its energy to something else. ... By applying a force on the ball over this distance, the hand is doing work on the ball, and the ball gains kinetic energy. This is what gives it speed. | |
| 41. |
Draw a daigram of young's double slit experiment to produce interference fringe pattern |
|
Answer» tics. Describe Young's double slit experiment to PRODUCE interference PATTERN due to a monochromatic source of light.Wave OPTICS. Describe Young's double slit experiment to produce interference pattern due to a monochromatic source of light.When monochromatic light passing through two narrow slits illuminates a DISTANT screen, a characteristic pattern of bright and dark fringes is observed.Wave Optics. Describe Young's double slit experiment to produce interference pattern due to a monochromatic source of light.When monochromatic light passing through two narrow slits illuminates a distant screen, a characteristic pattern of bright and dark fringes is observed.This interference pattern is caused by the superposition of overlapping light waves originating from the two slits.Wave Optics. Describe Young's double slit experiment to produce interference pattern due to a monochromatic source of light.When monochromatic light passing through two narrow slits illuminates a distant screen, a characteristic pattern of bright and dark fringes is observed.This interference pattern is caused by the superposition of overlapping light waves originating from the two slits.Young's double slit experiment.Wave Optics. Describe Young's double slit experiment to produce interference pattern due to a monochromatic source of light.When monochromatic light passing through two narrow slits illuminates a distant screen, a characteristic pattern of bright and dark fringes is observed.This interference pattern is caused by the superposition of overlapping light waves originating from the two slits.Young's double slit experiment.Here pure-wavelength light sent through a pair of vertical slits is diffracted into a pattern on the screen of numerous vertical lines spread out horizontally.Wave Optics. Describe Young's double slit experiment to produce interference pattern due to a monochromatic source of light.When monochromatic light passing through two narrow slits illuminates a distant screen, a characteristic pattern of bright and dark fringes is observed.This interference pattern is caused by the superposition of overlapping light waves originating from the two slits.Young's double slit experiment.Here pure-wavelength light sent through a pair of vertical slits is diffracted into a pattern on the screen of numerous vertical lines spread out horizontally.Without DIFFRACTION and interference, the light would simply make two lines on the screen.Wave Optics. Describe Young's double slit experiment to produce interference pattern due to a monochromatic source of light.When monochromatic light passing through two narrow slits illuminates a distant screen, a characteristic pattern of bright and dark fringes is observed.This interference pattern is caused by the superposition of overlapping light waves originating from the two slits.Young's double slit experiment.Here pure-wavelength light sent through a pair of vertical slits is diffracted into a pattern on the screen of numerous vertical lines spread out horizontally.Without diffraction and interference, the light would simply make two lines on the screen.A hyperbola is defined as the locus of points where the value of the difference between the distance of the two foci is a constant equal to 2a which is the distance between its two vertices.Wave Optics. Describe Young's double slit experiment to produce interference pattern due to a monochromatic source of light.When monochromatic light passing through two narrow slits illuminates a distant screen, a characteristic pattern of bright and dark fringes is observed.This interference pattern is caused by the superposition of overlapping light waves originating from the two slits.Young's double slit experiment.Here pure-wavelength light sent through a pair of vertical slits is diffracted into a pattern on the screen of numerous vertical lines spread out horizontally.Without diffraction and interference, the light would simply make two lines on the screen.A hyperbola is defined as the locus of points where the value of the difference between the distance of the two foci is a constant equal to 2a which is the distance between its two vertices.Hence, the fringes in YDSE are hyperbolic.Therefore the path difference between the two waves at point M is zero.Therefore the path difference between the two waves at point M is zero.Thus the point M has the maximum intensity. |
|
| 42. |
State law of conservation of momentum. A bullet of mass 10g is fired from a gun of mass 6kg with a velocity of 300 meter per second. Calculate the recoil velocity of gun |
| Answer» CONSERVATION of LINEAR MOMENTUM GIVES,m1v1+m2v2=0m1v1=−m2v2v1=m1−m2v2Given, m1=10g=(100010)KG, m2=1 kg,v2=−5m/s∴v1=10/1000+1×5or v1=500m/s. | |
| 44. |
Question A student needs to find the density of a large steel bolt but does not have access to a balance, Suggest and Describe a method through which he can find the density of the bolt, draw a diagram to help your answer |
| Answer» METHOD is DIAGNOL SQUARE | |
| 45. |
Mention the societal applications of nuclear Physics and explain them ? |
|
Answer» ries in nuclear physics have led to applications in many fields. This INCLUDES nuclear power, nuclear weapons, nuclear medicine and magnetic resonance imaging, industrial and agricultural ISOTOPES, ion implantation in materials ENGINEERING, and radiocarbon DATING in GEOLOGY and archaeology. |
|
| 46. |
image of an object placed at C of a concave mirror forms at C in same size.Magnification in this case |
|
Answer» 1Explanation:m= -V/U place the VALUE of v and u you will get 1 as both will be same. |
|
| 47. |
3.Coefficient of friction is equal to the tangent of the angle of repose.. ( True/False ) |
| Answer» TRUEEXPLANATION:TRUE is the RIGHT ANSWER of this QUESTION | |
| 48. |
A) how color blind distinguish colors?what are the interface design rules for color blinds? |
|
Answer» Instead of seeing green and red as distinct colors, the person SEES them as being very similar, thus the resulting color confusion and other frustrations. Color blindness is caused by a CHANGE or reduction of sensitivity of one or more of the light-sensitive cone cells in the eye.Two simple RULES about CONTRAST and colorFirst, good contrast helps a LOT. The more contrast, the better the colorblind can see the difference between the two items. Second, never use color alone to convey information or indicate action. Always provide alternatives in the form of text, icons, or other indicators. |
|
| 49. |
Determine the tension developed in each cord required for the equilibrium of the system holding a lamp of mass (m) = 69 kg. |
| Answer» TION:I HOPE it will be HELPFUL for you... | |